All Working Doom 3 Cheats - PC

cheat description		size
TRAINER FOR v1.3 STEAM Jul. 04, 2009		695KB
TRAINER FOR v1.3 Jan. 31, 2009		97KB
TRAINER FOR v1.3 Jan. 05, 2006		1.3MB
FAQ Nov. 26, 2005		121KB
NAMES LIST (LISTS ALL SPAWN, MAP AND GIVE PDA Nov. 25, 2005		1KB
ALL COMMANDS LIST Nov. 25, 2005		1KB
INTRO REMOVER FOR v1.1 Nov. 25, 2005		55KB
UHS MODULE Nov. 25, 2005		545KB
EASTER EGGS GUIDE Nov. 25, 2005		12KB
MONSTERS GUIDE Nov. 25, 2005		15KB
UPGRADE PACK Nov. 25, 2005		923KB
TRAINER Nov. 25, 2005		5KB
TRAINER Nov. 25, 2005		25KB
TRAINER (WIN2K FIXED) Nov. 25, 2005		55KB
TRAINER FOR v1.1 Nov. 25, 2005		50KB
SAVE GAMES Nov. 25, 2005		12.2MB

Cheat Mode
Press [Ctrl]+[Alt]+[~] to access the console, then enter the following codes for desired effect:

god - God mode
noclip - No clip
notarget - Invisibility
freeze - Freeze everything
doomhell - Jump to the last level
give all - All weapons, ammo, shields and health
give ammo - Full ammo
give doom95 - Load the '95 version of Doom
give keys - All keys
give berserk - Beserker mode
give health - Health
give weapons - All weapons
give weapon_bfg - BFG
give weapon_shotgun - Shotgun
give weapon_chainsaw - Chainsaw
give weapon_plasmagun - Plasmagun
give weapon_machinegun - Machinegun
give weapon_rocketlauncher - Rocket launcher
give pda - PDA
give pda [hellhole_id] - Get a id software PDA (download names list from above)
spawn [character name] - Spawn a character (download names list from above)
map [map name] - Load a map (download names list from above)
benchmark - Game benchmark
com_showfps 1 - Show FPS
aviDemo - Saves a demo of your playing to an AVI movie file
gfxinfo - Graphics card infomation
vid_restart - Accept video settings without restart
status - Shows game status
timedemo demo1.demo - Benchmark test
r_gamma [0-3] - Set gamma level
r_brightness [number] - Set brightness level
s_volume_db [number] - Set sound volume (default is 0)
s_showlevelmeter 1 - Toggle sound level display (use 0 to disable this code)
g_showprojectilepct 1 - Toggle hit % to HUD (use 0 to disable this code)
pm_thirdperson 1 - Third-person view
killmonsters - Kill all monsters
kill - Suicide
quit - Quit game

Modify .def Files
The def files for this game can be found in "doom/base/def" folder. Open these files in a text editor to make modifications on all of the game variables. NOTE: Back up every file you're going to modify because incorrectly modifying these files can have unwanted effects on your game and without a backup you may have to reinstall the game, erasing the progress.

Nightmare difficulty setting
Use a text editor to edit the "doomconfig.cfg" file in the game folder (create a backup first!). Locate the following line and replace 0 with 1:

seta g_nightmare "0"

Third person view
Use a text editor to edit the "doomconfig.cfg" file in the game folder (create a backup first!). Add the following line to the file, and you'll be able to use P while in the game for third-person view:

bind "p" "toggle pm_thirdperson"

Use [~] to access the console
There is two ways to open the console with the [~] key only. One is to brind down the console and type "com_allowConsole 1" (without the quotes). The other is to generate a file called "autoexec.cfg" in game's "Data" directory, and put in the following line:

seta com_allowConsole "1"

Security Pass
Before you fight the final boss, move to the left and find a little section you can crawl under. There is a brick that says ID. Hit this brick like you would a computer panel. It will open a secret area with a PDA. This PDA will have messages from the programmers and will give you an all access security pass. (thanks, gatzby)

Martian Buddy Locker Code
Go to http://www.martianbuddy.com for the Martian buddy locker code of 0508. The web site address is found in a spam mail on the pda of Alan Dorweiler.