Overview Edit

Welcome to the Arcade Map wiki page for Parasite - Zeta, developed by Smith, Dimento, and Host. This map is one of the most popular Arcade maps in starcraft 2 and always makes front page of maps by popularity. Enjoy a social deduction and deception game with a huge depth of content to master.


Map Edit

As a crew member of an Explorer class space station, most of your time will be spent on the space station. Here you can upgrade various subsystems and bring the station back online to full operational capacity.

The station can be divided into 9 floors and 2 vent subsystems. Floors 1-7 have access to adjacent floors, with 6 having access to the C.O.R.E. and the reactor levels. The reactor has access to floors 1 and 7 and access to both vent systems. Each other floor has access to a particular vent system depending on whether they are even or odd. The only floor that don't follow this rule is the C.O.R.E, as it doesn't have a vent system All the floors on the ship are:


The Cargo Bay (FLOOR 1) Edit

Provides access to outer space for all crew members in the form of 8 ships in the hangar on the left side; ships can launch at 5 minutes. These ships can be destroyed which can deny escape for humans and aliens alike. In addition there is a gold processor on the right side that can process solarite brought to it by an SCV. This floor has the most amount of items that can be found at the start of the game. Floor 1 contains all shops, many mechs, an autodoc, and access to the reactor power core.

This floor also has the Recycler used for item crafting. Here are the known recipes:

minigun + gauss + explosion grenades = Pulse Rifle

shot gun + white key + Incinerator = ol' smokey

solarite + mech cell = gold mech cell

The Living Quarters (FLOOR 2) Edit

Crew spawn from hibernation in the bottom room. Floor 2 holds the Marshall room on the right side where any Security Guard, CIO, or Captain can do the following:

1) Check the karma of any player;

2) Check which players have fully died and are no longer in the game, even as alien;

3) View station cameras after Security is level 3.

4) Access the High Security room when Security is level 5.

Marshall room also contains shops. On the top side of floor 2 in an expensive teleporter that can give instant transit to the moon if both sides remain active. On the left side are elevators to the Reactor and CORE.

The Biosphere (FLOOR 3) Edit

The doctor role starts upgrades here. Holds the zoo, which contains animals that when fested spawn into strong minions. In pens we have an autodoc. It also holds researchable aliens in pens that, once researched, will require the alien to need more points to evolve. It is a good idea for human players to kill all the zoo animals early and research pens to deny evolution points or release of penned aliens which can infest the vents. The life support module is in the lower left corner of the zoo. All shops besides explosives are available on floor 3. There's also a conduit hatch between the pens and zoo, which can make it easy for aliens to infest this floor.

Different animals give different minions, with the highest priority male ursadaks which spawn an ultralisk just above female ursadaks which spawn a breeder.

Sheep spawn 2 broodlings

Lyotes spawn a zergling

Male Karaks spawn a zergling

Crab-beetles spawn a raptor

Tastelopes and artosilopes spawn a hydralisk

Ursadak calves spawn a roach

Female ursadaks spawn a breeder

Male ursadaks spawn an ultralisk BEWARE!

The Medical Bay (FLOOR 4) Edit

The doctor role finishes upgrades here. On the left is the autodoc system which, once researched, allows portable autodocs to be bought from med shops. On the right is the blood tester, which once researched can test who is alien/android/human. A conduit hatches connects these two sides. The bottom room contains a vent exit and the Gene upgrade station allowing 2 (or 3 if your the CMO) purchasable buffs to: Move faster, improve armor, increase energy regen and gain a psi point as psion, infest immunity, radiation immunity, permanent invisibility, invisibility detection, improved health regen. The alien host can buy Gene evolution points. Alien spawns and android cannot purchase genes.

The Weapons Lab (FLOOR 5) Edit

The chief weapons role does upgrades here. At the top is the station weapon upgrades. This unlocks stronger weapons at all gun rack shops. Stations weapons level 5 unlocks nuking the moon, which used once will destroy the moon base and twice will destroy the entire moon; the moon can be nuked while piloting the station. At the bottom is the unlockable weapons upgrade station aka bench which provides personal upgrades to one's damage and individual upgrades for different guns. The bottom room also has access to the Space Walk which can randomly fest and has the ship radar dish. Connecting the top and bottom rooms is a conduit hatch. Floor 5 contains all shops.

The Network Mainframe (FLOOR 6) Edit

Captain, CIO, CMech and Security Guards access upgrades here. In the small room on the left side is the network mainframe allowing players to view all cameras throughout the station. The same terminal also contains upgrades for the ship firmware and the ship's security system. At the top is the mech upgrade station. Mechs are powerful battlesuits that are immune to poison gas. Alpha codes activate Olympus and Hades mechs, Beta codes activate Apollo and Orion. Delta codes activate the ATLAS and Hercules Tanks, the most powerful in the game. Gamma codes give all mechs full energy. CMech can now upgrade mechs futher with a purchasable mech upgrading chamber, located to the top right. Last but not least Floor 6 holds the Armory which when activated gives everyone +1 armor and contains purchasable buffs to personal health, shields, and energy. On the right side are elevators to the CORE and Reactor.

The Bridge (FLOOR 7) Edit

Controls for piloting the station

Scan for crew/aliens. (requires: level 2/4 firmware).

Targetting crew members via the security system (requires: Captain's Card).

Gassing the vents to kill its occupants and removing infestation (requires: Captain's Card and level 3 firmware).

Activating Escape pods (requires: Captain's card and lvl 4 firmware).

On the top is an elevator to the Reactor's Oxygen Generator room.

The Reactor (FLOOR 0 or 8) Edit

The engineer role upgrades here. On the top are two power links that can be turned off to deny power to the station's security (before Security level 4). Also top is a wheel to pilot the station and a terminal for Reactor upgrades which can repair all station components and purge all alien minions and tumors. In the middle power can be turned off by destroying the power core which takes many repair kits or a SCV to repair to full. The Oxygen generator is located on the bottom next to the bridge elevator, which can be turned off to deny oxygen to humans and psion. It is recommended for a human engineer to fortify the reactor and repair any damage to systems there when safe to do so. The reactor contains all shops and access to floors 1, 2, 6, 7.

Once the Reactor level has hit level 3 or Firmware has hit Level 5 the station can activate the self destruct sequence. To do so, one must set the reactor switches to the up position on all 4 of the switches. Then when on of the power links is activated (does not matter if its on or off as long as there is no cosmic storm going on) the station self destruct sequence will activate with a 4 minute timer. When this sequence hits 2 minutes the self destruct can NOT be averted. To turn off the self destruct, as long as the sequence is about the 2 minute mark, return the 4 switches to the down position and activate one of the power links. Alternatively if they station for some reason or another hits 20% health the station will automatically activate the 2 minute timer that cannot be stopped.

The C.O.R.E (FLOOR 9) Edit

The engineer and android roles upgrade here. Engineer upgrades many different kinds of security droids. The most popular is the TX47, also known as "roomba." This droid has access to all levels, paths through locked doors, and will patrol the station like a security guard. The Roomba can be upgraded to have a stronger attack, cloak, and better shields. If an alien engineer upgrades enough parts of the droid, it will go rouge, and attack anything, be it alien, human, or turret. There are also janitor droids which are good to get first. Pay attention to anyone in this floor besides engineer, because they are likely the android.

Vents Edit

The vents contain winding paths to the different floors, essentially being a faster way to travel. In the vents are a radiation stabilizer (one in each) a security module (one for every floor) which deactivates all cameras and turrets in a floor when it is destroyed, and a path to the other vent. There are also 2 gas evaporators which can be blocked by drones. And there's exits to the spacewalk and reactor.

Outer Space (9) Edit

provides passage between the station and the moon. It also holds blue minerals that can be harvested by ships to boost the income of all players. It is important for Deep Space Miners to be constantly mining as having a strong income is key to a successful human team winning. Space is fraught with danger though, if you die in space its game over. There are mines that constantly fire when you come close which can damage your ship and the station. Cosmic storms can appear intermittently which prohibits all space travel, and black holes can also appear which can destroy your ship instantaneously and destroy the station. It is important for a vigilant captain to steer the station away from black holes if and when they appear.

The Moon (10) Edit

is perhaps the most interesting place on the map lore-wise. The central area is a vast expanse of ice and cold that will slow your movement down. In the center is a bunker where you can fortify yourself in the endgame. There you can find many turrets and mechs. In addition to that, you can lock the doors by finding the key card in the cave. In addition you may take the infestation logs which will affect the alien's infest ability cooldown. The Base also holds the other end of the warp harmonizer as well as powerful mech suits. On the left side of the moon, you will find a cave holding solarite and alien eggs. This is likely where the alien infestation originated. As an alien you can open the eggs to spread the infestation throughout the moon quickly. As a human it is best to destroy those eggs to deny the aliens that opportunity. When mining solarite with an SCV you can transfer it to your ship and process it back on station for an added income boost.

  • On the moon, all 4 shops, the 2nd and last armory, the 2nd and last weapon upgrade station, and solarite to be mined by SCV mechs.
  • Infesting the moon reduces alien NPC spawns on the station due to unit limit. Aliens should infest the moon only when necessary. Aliens at moon can also travel to Station via Overlord when no humans are detected at Moon.
  • Some rooms in the back of the moon base are rigged to explode upon entry.

The moon, and bunker, can be destroyed by wasting about 10 minutes to chip away the moons health bar with level 5 station weapons. Alternatively, Nuclear weapons can be used instead. The nukes cost 750 energy to launch and take 60 seconds to land. It takes 300 seconds to recharge. On the first nuke landing the entire surface will be covered in radiation and the bunker will be permanently destroyed. The Second nuke will destroy the cavern permanently blocking access to the hive and solarite. The third nuke will destroy the planet. Alternatively, if the alien got level 5 weapons as CIO or CWO, when the first nuke launches it will detonates a second nuke on board the station, immediately the station will enter the 2 minute self destruct sequence as stated before.

The Bunker (10b) Edit

The bunker is where the last people that inhabitant the moon lived. The bunker itself has 3 exists/entrances, West, East, and South. The west end and The east end both end up in a a main T-shaped hallway and that hallways has 2 turrets protecting it. In the main hub is an Auto dock towards the Gene modifier (see level 4). On the east there is a weapon bench to upgrade the weapons. Onward towards the south, there are 2 rooms both containing more shops and two atlases all the way south there contains a little area that contains 4 mechs in it. Backtracking towards the north there is a "level 2" or the Bunker.

Level 2 holds another turret protecting the office and an auto dock towards the south dealing with the turret there is a max security door that is on lock down. Destroying said doors grants access to the armory and the data files. Getting said data files adds an increased amount of Evo to evolve.

HUD Edit


The heads up display (HUD) is shown on the right. 

  • Displays your health/energy. If your health goes to 0 you die and cannot respawn, although you can observe after you are dead. However if you are human and your health drops to zero due to an alien hitting you, (or you are infested), you will become an alien spawn and switch sides. Energy is consumed when using abilities such as flashlights, grenades and sprint. Conserve your energy so you can use it when required.
  • Flashlight can always be toggled on/off by pressing F
  • Toggle Human/Alien Chat - Appears when you are alien. Click this button to switch between chats to all players or aliens only.
  • Money/Evo Points/Oxygen - Displays how much money, evo points and oxygen you have. Money is used to purchase items and upgrades on the station and increases over time. Its rate can be increased by mining or doing your duties on the station (see roles further below). Evo points appears when you are alien and increases over time to perform evolution or spawning minions. Oxygen begins to drop when the oxygen processor is turned off on the station. When it drops to zero you will die. Picking up and using Oxygen tanks found on station will keep you alive.
  • Useful text messages will appear here, pay attention to these alerts.
  • The minimap shows where you are on station (see map above). As alien you will also receive a location ping on all alien spawn and human players.
  • Your inventory shows what items you have. You only have a limited amount of items that you can carry with you. Click on them or press the corresponding numpad to use.
  • Your abilities are you special powers that you can use. Hovering over the money shows you your current income. Pressing T as alien allows you to transform between alien and human form (T1-T3 alien).
  • Pressing Insert/Delete will rotate the camera perspective to see behind things. Useful for seeing loot crates against walls and people hiding in the vents.
  • Type handles in chat to see a list of crew and their BNet Name.

Roles Edit

There are 8 crew member roles that are assigned at random to each player at the start of the game. Each role gives a player a different set of abilities and responsibilities aboard the space station. It is important that you stick to your assigned role as you and your crew mates will receive strong bonuses. These different roles are listed as:

  1. Captain (Cap)
  2. Chief Intelligence Officer (CIO) (also referred to as "LT")
  3. Chief Mechanical Officer (CMO) (usually referred to as "maj" or "cmech")
  4. Chief Weapons Officer (CWO) (occasionally referred to as "Sgt")
  5. Chief Medical Officer (CMO) (somtimes referred to as "doc")
  6. Chief Engineering Officer (CEO) (usually called "engi")
  7. Security Guards (SGs)
  8. Deep Space Miners (DSMs) or sometimes just "Slaves" instead of space. (Even though it is considered rude)

These roles can also be one of 4 special roles, only unlocked with higher karma.

  1. Human: No special ability, can be turned into a Alien Spawn, or give a Psion a Psi point if killed.
  2. Alien Host: Can Infest any organic, and any kills on humans while in Alien form or while they are infested (headcrabbed) will turn them into a Alien Spawn
  3. Psion: Can be good,which will work with humans, or Evil, which your on your own. Can use different ability depending on the alliance. Killing a Spawn, Host, Android, or Human will give you a Psi point, and change your alliance to Evil if its Human. Cannot be spawned, but can be infested (headcrabbed). Aliens will not be able to see that your psion until you reached good augmentation or evil augmentation. If your evil, they will see you as a red ping, and if your good, they will see you as a teal ping. You can be discovered by by psi scanner, located on 4-th floor.
  4. Android: Can upgrade self in C.O.R.E with little things, or change completely into a new form. C.O.R.E giving to Android a directive to protect or eliminate humans.

Press F12 in-game to read up on the specific role you spawn as. In a full lobby there will be three SGs and three DSMs. All other roles are randomly assigned to one player. A more thorough explanation is provided on each role below.

Captain (Cap) Edit

The Captain is the commander of the station and its crew. They possess the Captain's keycard which allows them to activate key station's functions, command security targetting systems and lock doors. As such they have authority over the station unless they pass the keycard to another. Their role is to coordinate and direct the crew on exterminating the alien threat.

The Captain will typically stay on the Bridge alone where they have full view of the station's cameras. From here they have full control and pilot capabilities for the station. However some of the functions are disabled until a specific firmware level has been researched. Watch for any suspicious happenings and communicate to the crew. Captain can pick targets for auto-defense turrets to shoot with their keycard. Captain can move the station, heal it, and attack anything nearby in space. In addition they can activate various station functions depending on firmware level. The firmware 1 unlocks scanning for crew. Security upgrades allows station lock-down closing all doors. Firmware 2 permits scanning for aliens. Firmware 3 allows decontaminating the ventilation shafts. Firmware 4 allows activating drop-pods for quick transit to the moon. Firmware 5 allows station self-destruct in coordination with engineer, use with extreme caution.

The Captain can lock/unlock any doors with his keycard, however only black high-sec doors will remain locked. It is a good idea to barricade and lock the bridge to prevent the captain from being infested by aliens. An Alien Captain can turn the station's security on human crew members which will cripple the human crew. Make sure that the alien doesn't come through the vent on lvl 7 as a sneak attack on an unsuspecting Captain. Scan often and decontaminate the vents to kill anything growing inside. The Captain gets a credit bonus for remaining on the Bridge.

Alien Effects:

  • Upgrading Firmware 2 will provide Aliens more bonus periodic income
  • Upgrading Firmware 3 will cause Vent Gas to heal Aliens instead (Still damage Alien Minions)
  • Upgrading Firmware 4 will silent infest anyone who uses Drop Pod
  • Upgrading Firmware 5 will make Self Destruct to instantly destroy Station, and also making the timer to be at 02:00 instead of 05:00
  • Can easily sabotage as Captain has access to all locked areas
  • Able to trap and infest someone in a room by locking the doors via Captain Card
  • Has the ability to target someone with turret easily when they are accused by others

Chief Intelligence Officer (CIO or Lieutenant) Edit

The CIO is the second in command on the ship and the Captain's chief lieutenant. While their foremost priority is to assist the captain in its duties by upgrading the firmware and watching the cameras on lvl 6, the CIO can assume any role on the ship.

CIO mainly watches cameras on level 6 at the security mainframe along with the Captain. They will coordinate strategies along with the captain. CIO also has access to all security doors that have an accessible panel. The CIO gives bonuses to upgrading any of the station's research, the same as it being upgraded by the specialised officer. Thus CIO may also assume any of the different roles, especially if that role is MIA/KIA. CIO should start by purchasing cheap upgrades such as weapon upgrade station and armory, as it gets personnal bonus income from any upgrade purchased.

Alien Effects:

  • Has the ability to infest every upgrades
  • Can gain a massive alien upgrade for a cheaper cost, by letting others to research until certain level and sneakily upgrade the higher level

Chief Mechanical Officer (CMech, CMechO, Mech, or Major) Edit

The third in command on the ship, the CMech's job is to bring the armoury and mechs online. The CMech gets a bonus to piloting mechs with increased damage and less mech fuel use. These mechs can save a dire situation when used correctly. The most powerful mech, the Atlas, can hold off several aliens at once. In addition, the armoury can also be used to purchased upgrades that can make players very hard to kill. CMech should always keep a motion sensor with him, as he can use it while piloting a mech.

CMech upgrades the mech codes and armory on level 6. The first Alpha Codes activate SCV's which is needed for dsm's to mine solarite as well as to repair any damaged turrets or station systems by the aliens. After fully upgrading the mech codes, cmech will typically pilot an Atlas and destroy any powerful aliens with extreme prejudice. CMech can take an Atlas to the moon via the level 2 warp chamber, although there's a second Atlas on the moon as well.

A quick rundown on the different mechs are:

Alpha Codes Edit

  • OLYMPUS - A battlesuit that does good damage.
  • HADES - The only mech capable of entering vents and ship.

Beta Codes Edit

  • APOLLO - A speedy vehicle that fires anti-armor rockets.
  • ORION - A tall mech with an anti-mechanical railgun.

Delta Codes Edit

  • ATLAS - A powerful battlesuit that rains death and destruction on all. Only 3 available in the game on lvl 1, 6 and moon base.
  • HERCULES - A beefy tank with a powerful armor-ignoring cannon and a top-mounted machine gun.

The last upgrade that can be researched (Omega codes) gives full fuel tanks to all suits and boost their fuel capacities.

Alien Effects:

  • Upgrading Alpha will give evo points whenever anyone use a mech
  • Upgrading Beta will silently infest anyone using a mech.
  • Upgrading Delta will turn OLYMPUS, APOLLO, and ORION into the alien side when activated.
  • Upgrading Omega will turn ATLAS and HERCULES into alien side when activated.

Chief Medical Officer (Doc, CMed, CMedO, or medical) Edit

The CMed is in charge of all the medical research. It is one of the most crucial early game roles, being in charge of bringing important systems online before the alien infests them. An Alien CMed/CIO can buy those upgrades and cripple a human team. Once all the systems are researched the CMed is less important and can focus on purchasing weapons and armour or testing suspected players with portable blood testers.

CMed has four responsibilities. Open the high-sec door to level 3's zoo to exterminate the animals; thereby preventing an alien infestation, research the aliens in the pens on level 3, and research the autodoc and bloodtester on level 4. All give very beneficial effects.

Pens cannot be released until 3 mins. Use this time to clear zoo as much as you can, then come back to pens and secure them. After pens were researched, if the alien hasn't shown any sign of aggression, you'd want to upgrade the blood tester, and test high importance roles. They are the least likely to be aggressive, but they can be extremely dangerous if they infest key upgrades so it's good to expose them as early as possible.

Alien Effects:

  • Can easily release pens, infect the zoo, and destroy the blood tester because its job is to be there.
  • Performing research on the pens reduces evo point needed for evolutions.
  • Upgrading auto docs will silently infest anyone using a portable autodoc.
  • Upgrading the blood tester will reduce it's accuracy to 10%.

Chief Weapons Officer (CWO or Sergeant) Edit

CWO is responsible for upgrading station weapons and the weapon upgrade terminal, and gives a bonus for each, along with CIO. Each station weapons upgrade unlocks more purchasable options from weapon racks, and later upgrades improve station capability. CWO also brings the weapon upgrade station online, where weapon damage can be increased. It is very important to upgrade Station weapons as it unlocks powerful rifles that are required to fight higher tier aliens. When Station Weapons 5 has been researched, the Fusion Cannon may be purchased from the Weapon's rack which is a power single-target, high DPS weapon.

Alien Effects:

  • Upgrading Weapon 2 will reward host evo points whenever someone buys a weapon
  • Upgrading Weapon 3 will silently infest anyone who bought or picked up a gun; or anyone who placed a turret.
  • Upgrading Weapon 4 will enable the Captain to bomb the planet.
    • If Captain is human, the planet-boming shells will do 99% less damage to aliens.
    • If Captain is alien, the shells will backfire into the station, causing random explosions.
  • Upgrading Weapon 5 will cause a 30% Damage Debuff to all Weapons against aliens. All turrets will ignore aliens and rather target humans instead.

Engineer (Engi or CEO) Edit

The CEO is responsible for upgrading and defending the station's core reactor and power generator on the reactor level 0. CEO can repair double with repair kits, starts with a quick-building, discounted SCV, and can repair the entire station with the quantum reconstruction ability from the reactor. The Engi should place turrets around the whole reactor level to defend as well as coordinate with other crew members to time the activation of abilities on the station.

Alien Effects:

  • Upgrading Reactor 2 will cause alien eggs to give 1.5x the evo points when placed in the reactor.
  • Upgrading Reactor 3 will cause a 33% chance to silent infest anyone who enters the reactor.
  • Upgrading Reactor 4 will make the quantum ability, when used by an alien, to explode all turrets at stat instead of healing them
  • Upgrading Reactor 5 will permanently destroy the power core transformer, causing a blackout for the rest of the game. This will also prevent targeting, de-targeting, reactor abilities, and turret power if the turrets need station power to function.
  • Unlocking 2 out of 5 of the security droid's upgrades will make the AI go rouge. The droid then targets every human, turret, and alien.
  • Unlocking 5 out of 5 of the security droid's upgrades will make the AI self-aware, constantly upgrading itself to become more powerful over time.

Warning there is a typo with the In Game Help for CEO that tells you to go to level 6 for your upgrades. This needs to be fixed for newbies.

Security Guard (SG) Edit

The Security Guard's is one of the most active roles. Its job is very simple; to keep the crew safe and hunt down/respond to alien threats. This role should be guarding important crew members, upgrading security, and wandering between floors and vents actively seeking out the Alien. In addition, the Security Guards are stronger than other crew members and can beat them in a 1-on-1 fight.


  • The Stimpack ability has increased effectiveness on Security Guards and each Security Guard starts the game with one.
  • Security guards gain double the reward for killing Alien Minions, as well as clearing infested Life Support Modules. They have extra base health and armor, and gain bonuses to their health as the Station Security is upgraded.
  • They also gain bonus periodic income when they kill either the Alien Host or Alien Spawns.
  • Along with the Chief Intelligence Officer, when upgrading Station Security, an extra bonus is provided.

Alien Effects:

If the Security Guard is an Alien, every Alien Minion it kills in Human Form will give Evolution points to the Alien Host. Upgrading security also make turrets to have reduced damage against aliens

  • If the 4th and 5th security upgrades have been upgraded by the alien, then the station turrets become infested. The captain loses control of them, they auto-target all humans, and won't target aliens.

Deep Space Miner (DSM) Edit

The Miner's job is to mine minerals for the crew to increase everyone's periodic income.

Mining is performed by getting a ship from Floor 1 - Cargo, undocking, and mining the minerals that float around the sector. Undocking clearance is granted at the 5 minute mark. To mine, just right click/interact with a mineral cluster.

Small Mineral Clusters are worth 1, Large Mineral Clusters are worth 2. Every 60 Clusters mined will increase the crew's income by 1. But watch out for the mines and asteroids that also float around. Each mineral cluster mined will reward the DSM with 10 money.

Mining Solarite is much more efficient but is only found on the moon. Solarite begins in a Crystal. Mine the crystal by powering an SCV exo-suit and gathering from it. Then take it to the ship. Leave for the Station (Preferably when you have multiple Solarite Shards, 4 will generally do). When docked, carry the Solarite Shards over to the Jorium Refinery Model. (It looks like its crushing a lot of Solarite already).


  • Miners get a bonus to using Thermal Mining Charges.
  • All miners start with an anti-alien proximity mine, and a thermal sheild.
  • Miners gain double the reward for mining mineral clusters. They also gain double the progress towards increasing the crew income level when mining clusters.
  • Miners gain bonus income for successfully refining Solarite, in addition to the normal boost.

Alien Effects:

If the Deep Space Miner is an Alien, every Mineral Cluster mined will give Evolution points to the Alien Host.

Station Upgrades Edit

Ships Edit

Located in the hanger on level 1 are the star cruisers that serve as the station's mining vessels. They can be flown into space after 5:00 minutes. They can land on the moon and back on the station at will for refueling. They take damage when energy is drained or when flown during a cosmic storm. They are equipped with basic missile weapons and a disabling laser cannon. In addition, the ship can be upgraded to stealth cruisers, assault cruisers, and even battlecruisers with their upgrade panel on the left.

Warp-pad Edit

The warp pad costs 4,500 credits, and once purchased can be toggled on/off from station or moon independently. Both station and moon warp must be on for it to function. Useful for transporting mechs from moon or station, and a nifty way for aliens to get onto the station from the moon.

Specimen Research Edit

Usually the first Dr purchase. This disables releasing the pens and increases the cost of evolution for the alien. If purchased by the alien, it decreases the cost.

The pens can also be unlocked, releasing zerg into the station's ventilation system and throughout the station. Because of this, human doctors usually fortify the pens to prevent this from happening.

Autodoc Station Edit

These are on floors 1,3,4 and moon. They heal and remove infestation. Useful for restoring health or de-infesting your fellow crewmembers.

The Doctor can upgrade these to make a portable, single-use version. Useful for clearing infestations on life support modules.

Blood Tester Edit

On floor 5, tests for alien DNA and announces results. 60% accuracy, so it's possible for an alien to show as human, but not for a human to show as an alien. Doctor purchase increases accuracy to 80%. Alien doc purchase makes it 10%. The blood tester has 2000 Health and will be permanently offline when destroyed. When destroyed, all forms of blood testing are purchaseable, and blood-testing ablilities are useable.

Weapons Levels Edit

Upgraded on floor 5 by the CWO/CIO. See the Weapon Rack section.

Level 1

  • Gauss Rifle
  • Incinerator
  • Recon Rifle
  • Shotgun
  • Plasma Cutter

Level 2

  • Arc Welder
  • SubZero
  • Gamma Ray Gun
  • Laser Rifle

Level 3

  • Neutronium Rifle
  • Pulse Destabiliser
  • Particle Phaser

Level 4

  • Minigun
  • Plasma Rifle

Level 5

  • Fusion Railgun
  • Antimatter Rifle
  • Light Saber

Security Edit

Besides strengthening station guns and cameras, some upgrades have additional effects.

  • Level 1: Activates Sentry Turrets, and A-Sec, which will autotarget alien transformations and people caught attacking crew members or station equipment.
  • Level 2: Unlocks Security Lockdown ability from the bridg, and increases Camera range.
  • Level 3: Allows cameras to be accessed from the Marshall's office on floor 2.
  • Level 4: Enables station defenses to work without station power. Targeting, weapon overcharge, and quantum abilities are still locked.
  • Level 5: Adds a great bonus to health and damage for all defenses, and unlocks the High Security room on level 2.

Note: if all security upgrades were researched by alien SG/CIO, all turrets will turn rogue, targetting any human in sight, disengaging alien players, and ignoring human minions. Humans can no longer use targetting systems. If an alien transforms in front of a camera, they will still be revealed as an alien. If a station gun kills a human, they become an alien spawn.

Firmware Edit

Upgrades station operating software, increasing crew income, and enabling the use of advanced abilities.

  • Level 2: Enables the use of Crew Scan.
  • Level 3: Enables the use of Vent Decontamination.
  • Level 4: Enables the use of Alien scan and Escape pods.
  • Level 5: Enables the use of Self-Destruct.

Mechs Edit

Upgraded at the Mech depot on floor 6 by the CMech or CIO. Mechs are mainly found on levels 6, 1, the moon bunker, and scattered in other placed.

Armory Edit

Activated on floor 6 by the CMech or CIO. Grants defensive upgrades and powerful abilities. When infested, all alien attacks will get a 25% bonus to armor piercing.

Weapon Upgrade Terminal Edit

Activated on floor 5 by the CWO or CIO. Allows one to upgrade their weapons for more damage and bonuses. When infested, each upgrade gives the host 90 evo points.

Gene modifier Edit

Activated on floor 4 by the CMed or CIO. Humans can purchase up to 2 enhanced genes here. Human CMeds can get 3. Any aliens can purchase evo points for the host. If a gene-modified human is spawned, they lose any and all genes.

Alien Edit

Tips Edit

  • Passive vs.Aggressive
    • Passive - Staying "human" as long as possible, infesting your upgrades and staying away or destroying the blood tester. Gives you time to infest upgrades and become stronger. Being passive usually means waiting until you are fully evolved to attack the humans.
    • Aggressive - Leaving the crew as soon as possible to sabatoge them early on. Also known as rushing, where you quickly kill humans one by one. This is a frowned-upon strategy and also not a good one. Infesting the moon, other crew, and killing security modules will allow a brute-force attack onto the station.
  • Know the vents and conduit hatches to move quickly, infecting parts of the ship and escaping. Alien forms can move faster through vents than humans can.
  • Destroy security module in vents near each exit before infesting the life support. When the security module is down, all turrets and cameras on that floor are visibly disabled. An arc welder is the weapon of choice for it, just make sure to keep it quiet; the arcs are noisy and can alert humans that security modules are being destroyed.
  • Infesting an animal in the zoo will spawn alien minions that can quickly overtake the entire zoo. This creates a huge alien swarm that will rampage throughout the station sowing chaos if not dealt with by the human crew.
    • Works especially well if the crew hasn't bought the initial turret upgrade.
  • Only an alien can attack cameras, security modules, radiation stabilizers and the station's power core, so don't let humans see you attacking these.
    • Use an Arc Welder instead of your starter gauss to kill these.
    • Killing cameras will allow you to attack guns without being auto-targeted.
  • At the 3-minute mark, try as fast as possible to release the pens at Floor 3 if it is not fortified yet.
  • Notice Deep Space Miners that are about to mine yet haven't fortify their ship with cabarrides, they can be an easy target by going inside their ship when they are about to take off (Usually 5 Minute Mark+)
    • Instead, you can hide in the ship's vents and wait for a DSM to take off.
    • DSMs have their camera focused on space, so they will automatically attack rather than use abilities or even acknowledge that they are under attack.
  • Utilize remote mine at key point to easily kill someone offguard such as The Bridge Camera Spot, Infested Life Support, Non-portable Autodoc, and Ship piloting spot.
    • An explosion by a nearby fuel tank will create another large blast.
  • Accuse peoples as infected by having them blood test while they have a silent infestation. (Silent infest can causes Blood Test to identify them as Alien regardless of them being a human)
    • One way to do this is by infesting the autodocs, then autodoccing people before their test.

Vulnerable Station Subsystems Edit

  • Destroying both radiation reactors in the vents will cause radiation to affect all human occupants on station. They are at the bottom of each vent.
  • Infesting life support will spawn creep tumours and alien minions on their level. Infesting all 6 life support modules on the space station will cause drop pods to be infested and start sending minions to the moon, provided there are no humans left on the station.
  • Turning off oxygen will cause human players to require oxygen tanks or die instant deaths.
  • Destroying security modules within vents turns off all security cameras and turrets on that floor.
  • Disabling station power will make it so turrets, cameras, and power-requiring ablilites will be locked down.
    • Turning off both power links will alert everyone that they are off, and a fun way to cheese aliens through the station.
    • Destroying the power core takes some time, and also keeps power off for longer. Usually harder to detect, as it gives no alarm.

Evolutions Edit

Tier 1 - Starting evolution - 0 evo points

  • Infested Human
    • This is your starting evolution. It starts the game in human form, and has no abilities.
    • All aliens have slightly faster passive regen than humans
    • All aliens are immune to lack of oxygen and radiation effects

Tier 2 - Infest life supports and lay eggs - 600/660 evo points

  • Zealot (INDEV)
    • This evolution is still in development. Coming soon!
  • Zergling
    • Frenzy ability, increases attack and movement speed.
    • Burrow ability, can burrow in the ground to hide from or ambush humans
    • Rapid out-of-combat regen

Tier 3 - Morph vent nodules - 1200/1380 evo points

  • Beetle
    • Gains an additional life bar that has 15 armor
    • Frenzy now restores 45% of your maximum armor life over time
    • Burrow now rapidly restores life and armor life
    • Acid saliva ability, slows attack and movement, and does damage over time.
  • Bat
    • Can no longer disguise as a human
    • Flies over barricades and turrets, and becomes untargetable by them
    • Some weapons cannot hit air units
    • Much faster
    • Burrow ability removed
    • Attacks are ranged and hit air units
    • Many more abilities
    • Less tanky then other evolutions
  • Hydra
    • Attacks are ranged and can hit air units, cameras and security modules
    • Mend ability, restores 45% of your life instantly and more over time
    • Debilitating saliva ability, greatly slows attack and movement speeds
  • Velociraptor (INDEV)
    • This evolution is same as zergling but cant morth back to humanform, can be seen while burrowed and has invisibility perk - next evo xenoraptor

Tier 4 - Infest ability buffed - 1200/1500 evo points

  • Xenodon - Evolves from Beetle
    • Much more life and armor life, huge regeneration abilitys
    • Can no longer use the Burrow ability
    • About half as fast
    • Can no longer disguise as a human
  • Flame beetle - Evolves from Beetle
    • Burrow ability ignites fires above it
    • Can no longer disguise as a human
    • Attacks are ranged
    • Explosions and fires now heal instead of damage
      • Alien minions still take fire damage
    • Abilities adapted to inflame your targets, healing alien spawns and damaging humans
  • Venomus bat - Evolves from Bat
    • Abilities suited to deal more damage to mechanical and biological units
  • Xenoraptor - Evolves from Hydra or veloraptor
    • Can no longer use burrow or mend abilities
    • Many survival adaptations
      • Invisible to motion sensor
      • Immune to fire and cold (explosions still damage you)
      • Gain a buff to life, armor, movement speed, and damage if you are near another alien
    • Attacks are melee and can only hit ground units
    • Camoflauge ability, cloak and move 40% slower. Casting abilities, taking damage, or dealing damage will decloak you and set a cooldown.
  • Broodmother - Evolves from Hydra

Tier 5 - The Last Stand - 1200/1500 evo points

  • Alpha Xenodon - Evolves from Beetle
    • Doubled life
    • Attacks are melee and cant hit air units
  • Flame Gargantuan - Evolves from Beetle
    • Must evolve on the moon
    • Cannot enter ships
    • Has massive sight range
    • Many powerful flame/acid abilities
    • Takes bonus damage from SubZero
  • Noxious Monstrosity - Evolves from Bat
    • Much, much slower than it's previous evolutions
    • Much tankier
  • Alpha Xenoraptor - Evolves from Hydra

has invis and licking tongue

Minions Edit

These spawn from creep tumors and infected life supports and can evolve into more dangerous Minions. Minions will grow stronger as the Alien Host evolve into Higher Tier Evolution

  • Swarmling: The first type of alien minion, relatively weak and had the most numbers.
  • Feederling: Spawned from creep tumors and infected life supports, slow movement speed but can become a creep tumor.
  • Creeper: Spawns by creep tumors and infected life supports.
  • Zergling
  • Raptor
  • Banelings
  • Ultralisk
  • etc.

Eggs Edit

"F" ability once evolved to Tier 2. Eggs passively generate evo points.

Eggs can morph into a viral parasite. Virals are not targeted by station turrets and can infest, silent infest, or create a creep tumor to generate minions.

Eggs can also morph into a drone to build a hatchery, vent nodule, or sunken colony. The hatchery is able to spawn different minions on command, depending on the host's evo level, final evo unlocks all spawns. Sunken Colony Is a large, heavily armored defensive structure which has a below ground Tentacle attack. Cannot miss.

Infestation Edit

Every alien in the game, when killing a Human will turn it into an Alien Spawn. Alien Spawns are the weaker versions of the Alien Host. They and Feederlings can throw Parasites at Animals, Humans, and Life Supports, infesting them. Spawns can not be created at Stage 4 and 5 of aliens and to someone with low Karma Points

Strategies Edit

Jakl, "In a typical game as the alien host I'll rush to floor 1 to loot a flame shield, stim, health pack, and thermite. I'll then take the vents to floor 3 and release or if it's heavily defended I'll take the long way around back to floor 1 and make my way to the zoo. Standing behind a turret next to the zoo door will give vision into the zoo to infest a critter, even if it's locked. I'll then blow up the gas tank next to the pens and flame shield to run in and release if it looks safe. Then I'll take the odd vents and try to spawn some humans while they're fighting minions. I'll then go via the vents to floor 7 and destroy the camera then guns and door in the vents so I can attempt to spawn the captain. Then I'll take the elevator to floor 0 and destroy the cameras and guns around oxy. I'll evo and drop an egg -> viral -> creep tumor in oxy. I might disable oxy or not, depending on how many spawns I have and if the crew is on their toes. I'll then take conduit hatches from oxy up to engi and try to spawn him. Engi is OP as a human late-game with quantum repair and purge. I'll then try to get an arc welder and destroy all the security modules and infest the life support on every level. This strategy tends to work against noobish or standard crews and is very low risk, avoiding direct/fair confrontations."

Items Edit

Items are stored in your inventory, and can be used by clicking on them and/or clicking an area. All items can be bought from shops or found in crates.

There are four different shops that can be found on the station and moon. Edit

  • General Shop
  • Medical Supplies
  • Gadget Shop
  • Explosives Depot

General Edit

Bomb Defusal Kit Edit

When directly above a bomb, click to disable the bomb and drop the corresponding bomb item on the floor. Can be used on bombs that are about to be set off (e.g. an activated remote mine).

Power Cell Edit

Use to power up a mech by 50 energy (cmech gets 100 energy instead).

Gold Power Cell Edit

Use to power up a mech by 250 energy (cmech gets 500 energy instead).

Repair kits Edit

Use to repair anything that can be damaged such as turrets, doors, security cameras, mechs and reactors. Extra bonus to repair for CEO.

Barricades Edit

Can be used to erect walls that deny access or funnel movement through a particular spot.

Mech cells Edit

Use on a mech to instantly give it 50 fuel.

Thermal Red Flare Edit

Click to light up the surrounding area with a flare and give a ping on the minimap at your location for everyone to see.

Medical Supplies Edit

Energy pack Edit

Restores 75% energy.

Restoration kit Edit

Fully restore health over ~10 seconds.

Oxygen Tank Edit

Restore half of your oxygen (the number in the top right, next to credits).

Portable Auto-Doc Edit

Use it to clear infestations on yourself or life support systems. Activated when the auto-doc is researched.

Portable Bloodtester Edit

Activated when the bloodtester is researched. Can be used to test crew mates if they are alien. It turns blue if human, or purple if alien. There is a high probability that it can be inaccurate and it is recommended to be tested multiple times.

Stimpacks Edit

4 types of stim packs which increase attack speed, movement speed, or reduce damage for a period of time.

Gadget Shop Edit

Sentry Turret Edit

Attacks anything that moves. Rotates while active. Left click to deactivate, it then won't rotate or attack.

Exterminator Turret Edit

Uses flame attacks but only on aliens. Cannot be deactivated. Will not attack known aliens who are in human form.

Janitor Mop Edit

Unlimited uses. Cleans up fire, debris, creep, and corpses with enough uses. Essential for silent host.

Explosives Depot Edit

Thermite Edit

Small explosion good for destroying rocks/doors/turrets. Explodes 3 seconds after placed.

Can be used to blow up gas tanks in hallways of station for a massive explosion.

Remote Mine Edit

A larger explosion than thermite. Once placed, left click to explode.


A massive walking bomb that can be controlled for ~5 seconds.

Alien DNA- activated mines - reacts only on parasites and creeps, cant kill host with one.

Weapon Rack Edit

Weapon Racks are found on every floor and allows you to purchase weapons. All weapons are upgradable up to lvl 5 from the weapons upgrade bench found on lvl 5 or moon. Only the Tier 1 weapons are unlocked at the start of the game. The CWO/CIO must upgrade the station weapons to unlock more powerful weapons and as a bonus makes these weapons cheaper to buy.

Tier 1 weapons (Weapons 1) Edit

Gauss Gun Edit

Starting weapon. Has good range but limited damage. Cheap to upgrade. When fully upgraded it will give a 20% movement speed bonus.

Shotgun Edit

Does massive damage at point blank range. Good for kiteing enemies: attack, run, attack, run. (Best early gun imo)

Reconnaissance Sniper Edit

Does good damage at massive range. When fully upgraded, increases sight radius. Only weapon that can fire while stealthed.

Incinerator Edit

Short range, basic damage, good for AoE on weak alien minions.

Tier 2 weapons (Weapons 2) Edit

Arc Welder Edit

Shoots arcs of lightning bolts that is powerful against mechanical foes. It is also extremely good at performing acts of sabotage or knocking down doors and security boxes. Jumps to multiple targets, sucks energy

Sub-Zero Edit

Similar to the Incinerator except that it is cold based. Highly effective as aoe against minions. Slows targets

Tier 3 weapons (Weapons 3) Edit

Laser rifle Edit

High DPS against single/multiple targets. Strong against armoured foes. Ignors ARMOR good vs tanks and beetles/roaches

Particle Phaser Edit

A fast firing weapon ideal for taking down shields.

Pulse Destabiliser Edit

A fast firing weapon that gives a chance to stun foes.

Tier 4 weapons (Weapons 4) Edit

M134 Minigun Edit

A fast firing powerful chain gun, good at shredding apart alien minions and powerful alien hosts alike. It comes with the drawback of reducing movement speed by 20%.

EC-13 Plasma rifle Edit

A high dps single-target weapon. Especially good against unarmoured foes.

Tier 5 weapon (Weapons 5) Edit

Fusion Railgun Edit

A badass railgun that will deal damage in a long line. The closer a target is, the lower damage the weapon does. Depending on the target's distance, it can deal around 20%-120% damage? (Percentages may be off but are close.) Comes with a movement speed penalty. However, the tier 5 upgrade removes this, albeit being incredibly expensive with over 10,000 combined credits in upgrades.

Youtube Edit






Discord Edit

History Edit

The map name is PARASITE - TEST while it's still in development. Now Parasite - Zeta.

See threads 1 through 6:

Old wiki: