|To use these codes, simply hit the [TAB] key, type in the code of your choice, and Press [ENTER]
ALLAMMO Gives you 999 ammo for all of your guns.
BEHINDVIEW 1 Puts you in Tomb Raider style view.
BEHINDVIEW 0 Resets this. (be sure to show off the shieldbelt environment mapping this way, and the cool animations, and the cool swimming...)
FLY Lets you fly around.
FLUSH If you start getting weird garbage graphics on wall textures or creatures, type this to get rid of it.
GHOST Lets you walk through walls.
INVISIBLE Makes you invisible.
KILLALL : Kills all actors of a certain class, for example "KILLALL UNREALI.BRUTE".
KILLPAWNS Kills all monsters.
GOD Makes you invulnerable to all attacks.
OPEN MAPNAME Jump to any map, just enter the name like OPEN DIG.
SLOMO : Sets the game speed, 1.0 is normal
SUMMON Lets you add a weapon or an item to the world. For example:
SWITCHCOOPLEVEL Causes the server (or local machine, in a single-player game) to switch to a new level with coop-style weapon carrying between levels.
SWITCHLEVEL Causes the server (or local machine, in a single-player game) to switch to a new level.
WALK Returns you to walking mode if you are flying or ghosting.