- Add new creatures: Ovomorph, Facehugger, Chestburster, Xenomorph.
An hive with a small group of ovomorphs and/or xenomorphs can spawn on the map.
When a player makes sounds near an ovomorph or touch one, it may open and release a facehugger. If multiple ovomorphs hear a same sound source, only one opens.
Facehuggers chase players wth the sound they make. If a facehugger touches a player, it will attach to him/her for 5-10 seconds, infecting him/her randomly during this interval, then it will die. During this period, the player will be unconscious (if possible).
Around 1 minute after the infection, if the player is not dead, the player will die and a chestbuster will spawn and try to hide in a vent.
After around 2 or 3 minutes, a xenomorph will replace the chestburster. It will chase the players it sees or hears, or hide somewhere and wait to embush a player. If a xenomorph touches a player, it will deals him/her some damages and it will brings him/her to the remaining ovomorphs/facehuggers on the map. If a player menaces a xenomorph with a weapon, it will stop purchasing him/her temporarily. If a xenomorph transports a player with a weapon in its hands, it may kill him/her instantly. If it can't transport a player to an ovomorph/facehugger, it will transport him/her to its hive to transform him/her into a ovomorph after some time.
The remains of the creatures can be sold at a high price.
- Add new tools: Flamethrower, Movement Detector.
Deals continuous damage to entities. If a xenomorph is attacked with a flamethrower, it will flee in vents.
Movement detector inspired by the ones in Aliens and Alien Isolation.
- Add new PC interface: Use MU/TH/ER booting interface.
- Add new maps: Hadley's Hope colony, Romulus station, etc.
- Add new map features: Xenomorph hive, Vent layer.
Xenomorph hives are the spawn point of initial ovomorphs and xenomorphs. They should look like the ones in movies, but not necessarily too big (at least one room).
If possible, the vent layer are paths chestbursters and xenomorphs can take to go where they want. The movement detector should detect movements in vents → vent paths are generated.