Difference between revisions of "Cyst"

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| prereq=Nearby [[Cyst]] and active [[Hive]]
| prereq=Nearby [[Cyst]] and active [[Hive]]
[[Image:maturation thumb.gif|thumb|300px|left|A newborn [[Crag]] slowly maturing]]
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[[Image:maturation thumb.gif|thumb|300px|left|A newborn [[Crag]] slowly maturing]]

Revision as of 11:25, 25 April 2019

MAC.png This article is currently under construction.

MAC.png This article is up-to date
as of Build 320
(Current Build : 332)
Cyst grow.gif
"There's green goop everywhere!"
Kharaa.png Kharaa
Team Resources
Marines res.png 1
Abilities and Upgrades
Spread Infestation
Tech Requirements:
Place on valid ground, Must connect to Hive or nearby Cysts
Build Time: 5 seconds
Builds From: Alien Commander
Buy From: Build Tab
Hotkey: A
Mature Time: 120 seconds


The Cyst is a Kharaa foundational structure created by the Alien Commander. It is a luminescent, pustule-like organic growth with pulsating roots around it.

As the most fragile organ found within any Kharaa habitat, the Cyst can proliferate extremely rapidly. A parent is first grown around a Hive, then daughter Cysts can subsequently branch outward onto horizontal surfaces. When grown, the Cyst spreads bacterial Infestation to encompass nearby terrain, allowing other Kharaa structures to sprout and grow. Cysts depend on Hives for nutrition, and should connection between daughter Cysts be severed, the outermost unconnected Cysts will begin degenerating until death; if left unattended, an entire chain can be eradicated over time. Without Cysts to regenerate the infestation, the nano-grid can slowly eliminate the Bacterium at cellular level.

Tactical Summary - Cyst
  • Cysts are very important to the Kharaa structure chain.
  • Although inexpensive at 1 Team Resources excessive re-cysting and over cysting (placing cysts over an entire room) can be a waste.
  • Without Cysts alien structures that are not on the infestation will slowly die and not heal or be able to use abilities. Gorge structures are immune to this.
  • Flamethrowers are extremely effective of Cyst clearing!
  • Stepping on a Cyst will expose you to the enemy team momentarily, alternatively Alien Commander's can rupture to expose all marines near the cyst.
  • Killing off large cystchains away from the alien hive will slowly kill all cysts and structures on that chain, example killing 1 cyst near the aliens only hive will cripple whole sides of the map.


Spread Infestation

Infestation growing everywhere
Spread Infestation
Cyst idle small.gif
Grows Infestation onto nearby terrain to allow Kharaa structures to sprout from and stay nourished.
  • Infestation recedes quickly if the source is destroyed.
Radius 7 (Tunnel), 7.5 (Cyst), 20 (Hive)
Duration ∞ seconds
Targets Ground, Walls, Props
Requires Cyst, Hive, Tunnel


Cyst Chain

Chaining Cysts to a Resource Nozzle

Cyst Chain
Cyst slot.gif
Connects to an active Hive through other nearby Cysts to stay healthy.
  • Unconnected Cysts take damage over time until reconnection.
  • Redeploy: destroys oldest Cyst if new Cyst is placed inside its minimum range.
Damage 12 per second
Range 24
Minimum Range 6
Requires Nearby Cyst and active Hive


A newborn Crag slowly maturing
Nutrient mist icon.gif
Most Kharaa structures will mature over time, gaining extra maximum Health and Armor every second until fully matured.
  • Max health/armor and mature time vary between different structures.
  • At 50% maturity, the structure is prefixed as "Grown".
Targets Structure


Burning Hydras on the walls
Egg spawn buildmenu.gif
Flammable Kharaa structures will take extra damage from fire-based weapons.
Damage Damage x 250%
Type Flame
Targets Bone Wall, Clog, Contamination, Cyst, Egg, Hydra, Web
Requires Cluster Grenade, Flamethrower, Welder