Press [F8] during game play to display the console window. Then, enter one of the following codes to activate the corresponding cheat function. You can also press [Up] or [Down] to cycle through the console history to re-enter codes easily.

Effect	Code
Alien attack	externInclude developer:spawn_alienattack
All weapons	externInclude developer:givestuff
Ammo for all weapons/flashlight	externInclude developer:reloadstuff
Close all remote doors	externInclude developer:closeallremotedoors
Disable all AI, doors immovable	disableAllAI
Display message	message [text]
Enable all AI, doors movable	enableAllAI
Enable developer menu	externInclude developer:main
Enemies do not move	enableHostileAI
Enemies resume movement	disableHostileAI
Full health	externInclude developer:fullhealth
Get all keys	externInclude developer:giveallkeys
God mode, full health, all weapons, etc.	externInclude developer:stuffed
God mode	externInclude developer:immortal
Hide user interface	hideGUI
Lose all keys	externInclude developer:loseallkeys
Lose current mission, crashes game	setMissionFailureCounter 1
Open all remote doors	externInclude developer:openallremotedoors
Open closest door	externInclude developer:open_door
Quit game	quit
Show user interface	showGUI
Spawn Alien Type 0	externInclude developer:developer_spawn_alien1
Spawn Alien Type 11	externInclude developer:developer_spawn_alien4
Spawn Alien Type 4	externInclude developer:developer_spawn_alien2
Spawn Alien Type 9	externInclude developer:developer_spawn_alien3
Warp 3,000 units forward	externInclude developer:warpmore
Warp 300 units forward	externInclude developer:warpforward
Win current mission	setMissionSuccessCounter 1