what are the cheats for the game DOOM 3 ?

Answer 1

Console Commands
Press Ctrl+Alt+~(Tilde) to bring up the command console in a single player game:

The cheats (also walkthroughs and hints)are in my link. Go there. He said everything. I just want the ten points. I cannot copy and paste the cheats.

Answer 2

Console Commands
Press Ctrl+Alt+~(Tilde) to bring up the command console in a single player game:

Cheat Effect
god God Mode
give all All weapons with full ammo, health and armor
noclip Walk through solid objects
aviDemo Saves a demo of your playing to an AVI movie file
benchmark Game Benchmark
freeze Freeze all on screen
gfxinfo Graphics card infomation
notarget Invisibility to most enemies
give weapon_machinegun Machinegun
give weapon_shotgun Shotgun
give weapon_plasmagun Plasmagun
give weapon_bfg BFG
give weapon_chainsaw Chainsaw
give weapon_rocketlauncher Rocketlauncher
status Your game status
quit Quit game
com_showfps 1 Draws your Framerate.
kill Commit suicide
killmonsters Kills all Monsters
give ammo Max Ammo
give health Max Health
give weapon_chaingun Chaingun
pm_thirdperson 1 3rd Person View ON
pm_thirdperson 0 3rd Person View OFF
g_showplayershadow 1 You can see your shadow during singleplayer.

give pda Gives PDAs/disks of the level you're in.
give berserk Berserk mode
editor Opens up map editor
com_allowconsole 1 This will make it so you only have to press ~ to open the console, no longer alt+ctrl+~.

pm_walkspeed ### Defines how fast you are when you walk.
pm_runspeed ### Defines how fast you are when you run/sprint.
pm_crouchspeed ### Defines how fast you are when you crouch.
pm_noclipspeed ### Defines how fast you move with the "noclip" code turned on.
pm_jumpheight ### Defines how high you jump.
g_nightmare 1 Unlock Nightmare Mode
set g_dragEntity 1 Grabs objects/bodies when you aim and fire at them
give armor Gives you 125 armor
clear Clear console text
give keys All keys
r_gamma <0-3> Set gamma level
r_brightness <#> Set brightness level
s_showlevelmeter 1 Toggle sound level display
g_showprojectilepct 1 Toggle hit % to HUD
say Send message to everyone in multi-player
killmoveables Kill all moving enemies
killragdolls Kill all non-moving enemies
listmonsters Lists images of monsters
listlightdefs Lists indicated def file settings
idkfa secret message
Com_Fixedtic -1 Removes 60 FPS Limit
clearlights All lights turn off. Only light is by flashlight....
testlight Makes a light for you to see better
spawn monster_zombie_morgue Spawns a zombie similar to the one in the infirmary.
give weapon_flashlight Gives Flashlight

Spawn monsters/items
In the console (Ctrl+Alt+~) Type these in to spawn different monsters/weapons. You might want to use the "Notarget" code so they don't kill you right away.
Cheat Effect
spawn monster_demon_cherub Spawns a cherub (baby locust)
spawn monster_demon_imp_crawler Spawns an imp that starts out in crawling position.
spawn monster_demon_imp_crawl_armdoor Spawns an imp in a weird position. Doesnt move.
spawn monster_demon_revenant Spawns a revenant.
spawn monster_flying_lostsoul Spawns a lostsoul, sorta low to the ground.
spawn monster_zombie_bernie Spawns a flaming Bernie zombie! Wewt!
spawn monster_boss_Vagary Spawns the spider boss, Vagary.
spawn monster_boss_sabaoth Spawns the CPU boss, Sabaoth.
spawn monster_boss_maledict_cinematic Spawns an immobile, untouchable, unremovable Maledict, the thing you see in the ending cinematic of the game. There is no point in this one.
spawn monster_boss_guardian_seeker Spawns the Guardian's Seeker.
spawn monster_boss_guardian_spawner Spawns the floating blue thing above the Guardian. O.o;
spawn monster_boss_guardian Spawns the hell boss, the Guardian.
spawn monster_zombie_boney Spawns a strong, boney zombie.
spawn monster_zombie_commando_cgun Chaingun Zombie
spawn monster_zombie_commando Tentacle Zombie
spawn monster_demon_imp Imp
spawn monster_demon_pinky Pinky Demon (Cyber dog)
spawn monster_demon_trite Trite demon
spawn monster_demon_maggot Maggot demon
spawn monster_demon_hellknight Hellknight demon
spawn monster_demon_tick Tick demon
spawn monster_demon_archvile Arch-Vile demon
spawn monster_demon_mancubus Mancubus demon
spawn monster_flying_cacodemon Flying Cacodemon
spawn weapon_pistol Pistol
spawn weapon_bfg BFG 9000
spawn weapon_shotgun Shotgun
spawn weapon_chaingun Chaingun
spawn weapon_machinegun Machinegun
spawn weapon_rocketlauncher Rocket Launcher
spawn weapon_plasmagun Plasma Rifle
spawn weapon_soulcube Soul Cube
spawn monster_zombie_fat Fat zombie
spawn monster_zombie_maint "Yellow Jacket" Zombie
spawn monster_boss_cyberdemon Cyberdemon
spawn char_betruger spawns the evil betruger
spawn char_swann spawns swann
spawn char_campbell_bfgcase spawns campbell holding his bfg case
spawn moveable_chair (1,2 or 5) chair
spawn char_campbell spawns campbell holding...nothing!
spawn char_hazmat spawns a hazard suit scientist
spawn char_campbell_bfg spawns campbell holding bfg
spawn env_gibs_spine spawns a bloody spine
spawn env_gibs_torso spawns a bloody human torso
spawn env_gibs_leftleg (or right) spawns a bloody leg
spawn env_gibs_leftarm (or right) spawns a bloody arm
spawn moveable_ktable table
spawn moveable_computer computer
spawn moveable_base_fixed base
spawn moveable_base_barrel barrel
spawn moveable_base_domino domino
spawn moveable_base_boulder boulder
spawn moveable_burgerboxopen open burger box
spawn moveable_burgerboxclose closed burger box
spawn moveable_paperwad wad of paper
spawn moveable_burger burger
spawn moveable_base_brick base brick
spawn moveable_wrench wrench
spawn moveable_base base
spawn moveable_cannister canister
spawn moveable_blaptop laptop
spawn moveable_cartonbox (1-8) carton
spawn moveable_cokecan coke can
spawn moveable_monitor monitor
spawn moveable_gizmo (1-3) gizmo
spawn moveable_item_(any weapon here) weapons
spawn marscity_marine_helmet_p90_walking armed guard
spawn char_security_goggles_pistol guard with a pistol
spawn moveable_burningtank oxygen tank that explodes when shot
spawn moveable_explodingtank oxygen tank that explodes when shot
spawn moveable_burningbarrel highly explosive barrel
spawn moveable_explodingbarrel explosive barrel
spawn env_ragdoll_skeleton2 a "clean" skeleton
spawn env_ragdoll_skeleton a bloody skeleton
spawn monster_zsec_pistol_slowfire Spawns a Zsec with a pistol, fires slowly.
spawn monster_zsec_shotgun Spawns a Zsec with a shotgun.
spawn monster_zsec_machinegun Spawns a Zsec with a machine gun.
spawn monster_zsec_pistol Spawns a Zsec with a pistol.

Test Maps
Bring up the console by pressing Alt+Ctrl+~ then enter the following: Cheat Effect
map testmaps/test_box A simple room
map testmaps/test_boxstack Tall room with domino effect boxes
map testmaps/test_lotsaimps Large room with lots of enemies

Level Select
Bring up the console by pressing Alt+Ctrl+~ then enter the following codes. When you load single player maps you start with all the weapons you could have to that point and a small amount of ammunition. Cheat Effect
map game/mp/d3dm5 Multiplayer Map 5
map game/mp/d3dm4 Multiplayer Map 4
map game/mp/d3dm3 Multiplayer Map 3
map game/mp/d3dm2 Multiplayer Map 2
map game/mp/d3dm1 Multiplayer Map 1
map game/site3 Site 3
map game/recycling2 Recycling 2
map game/recycling1 Recycling 1
map game/pdas PDAs
map game/monorail Monorail
map game/mc_underground MC Underground
map game/mars_city2 Mars City 2
map game/mars_city1 Mars City 1
map game/hellhole Hellhole
map game/hell1 Hell 1
map game/enpro Enpro
map game/delta5 Delta 5
map game/delta4 Delta 4
map game/delta3 Delta 3
map game/delta2 Delta 2
map game/delta1 Delta 1
map game/cpuboss CPU Boss
map game/cpu CPU
map game/commoutside Comm Outside
map game/comm1 Comm 1
map game/caverns1 Caverns 1
map game/caverns2 Caverns 2
map game/alphalabs4 Alpha Labs 4
map game/alphalabs3 Alpha Labs 3
map game/alphalabs2 Alpha Labs 2
map game/alphalabs1 Alpha Labs 1
map game/admin Mars City Administration

Third-Person Mode
Press Ctrl+Alt+~(Tilde) to bring up the command console in a single player game:
Cheat Effect
pm_thirdpersondeath 1 Play from third person with your HUD, crosshair, etc.
pm_thirdPersonAngle "Value" Change the angle your character is viewed in thirdperson. 180 is a front view.
pm_thirdPersonHeight "Value" Change the height you are viewed in third person. Negative numbers are below normal.
pm_thirdPersonRange "Value" Change the distance the camera is from you in third person. 0 is a face view, 80 is default.

Spawn Ammo
In the console (Ctrl+Alt+~) Type these to spawn different ammo. Cheat Effect
spawn ammo_belt_small Ammo for Chaingun
spawn ammo_bfg_small Ammo for BFG 9000
spawn ammo_bullets_small Ammo for Pistol
spawn ammo_bullets_large Large ammo for Pistol
spawn ammo_cells_small Ammo for Plasma Rifle
spawn ammo_cells_large Large ammo for Plasma Rifle
spawn ammo_clip_small Ammo for Machinegun
spawn ammo_clip_large Large ammo for Machinegun
spawn ammo_grenage_small Hand Grenades
spawn ammo_rockets_small Ammo for Rocket Launcher
spawn ammo_rockets_large Large ammo for Rocket Launcher
spawn ammo_shells_small Ammo for Shotgun
spawn ammo_shells_large Large ammo for Shotgun

Give Ammo
In the console (Ctrl+Alt+~) type these to be given different ammo. Cheat Effect
give ammo_belt_small Get ammo for Chaingun
give ammo_bfg_small Get ammo for BFG 9000
give ammo_bullets_small Get ammo for Pistol
give ammo_bullets_large Get large ammo for Pistol
give ammo_cells_small Get ammo for Plasma Rifle
give ammo_cells_large Get large ammo for Plasma Rifle
give ammo_clip_small Get ammo for Machine Gun
give ammo_clip_large Get large ammo for Machine Gun
give ammo_grenage_small Get Hand Grenades
give ammo_rockets_small Get ammo for Rocket Launcher
give ammo_rockets_large Get large ammo for Rocket Launcher
give ammo_shells_small Get ammo for Shotgun
give ammo_shells_large Get large ammo for Shotgun

Spawn Monsters
Press Control+Alt+Tilde(~) To open the console, or just tilde if the com_allowconsole 1 cheat is typed in. The "god" and "notarget" codes are recommended before spawn a monster. Cheat Effect
spawn monster_demon_wraith Spawns a Wraith demon
spawn monster_zombie_fat2 Spawns a Fat zombie with his intestines showing
spawn monster_zombie_fat_wrench Spawns a Fat2 zombie holding a wrench
spawn monster_zombie_jumpsuit Spawns a Jumpsuit zombie
spawn monster_zombie_maint_bald Spawns a bald "Yellow Jacket" zombie
spawn monster_zombie_maint_nojaw Spawns a "Yellow Jacket" zombie with no jaw
spawn monster_zombie_maint_skinny Spawns a Skinny "Yellow Jacket" zombie
spawn monster_zombie_maint_wrench Spawns a No Jaw "Yellow Jacket" zombie with a wrench
spawn monster_zombie_maint2 Spawns a completely black "Yellow Jacket" zombie
spawn monster_zombie_maint_flashlight Spawns a No Jaw "Yellow Jacket" zombie with a flashlight
spawn monster_zombie_sawyer Spawns a Chainsaw zombie
spawn monster_zombie_skinny Spawns a skinny zombie
spawn monster_zombie_suit_neckstump Spawns a Suit zombie with no head
spawn monster_zombie_suit_bloodymouth Spawns a Suit zombie with a bloody mouth
spawn monster_zombie_suit_skinny Spawns a Skinny Suit zombie
spawn monster_zombie_tshirt_bald Spawns a Bald zombie similar to the one in the infirmary
spawn monster_zombie_tshirt_blown Spawns a zombie almost exactly like the one in the infirmary
spawn monster_boss_cyberdemon Spawns Cyberdemon
spawn monster_boss_guardian Spawns Guardian
spawn monster_boss_guardian_seeker Spawns Guardian's Seeker
spawn monster_boss_sabaoth Spawns Sabaoth
spawn monster_boss_vagary Spawns Vagory
spawn monster_demon_archvile Spawns a Archvile
spawn monster_demon_cherub Spawns a Cherub
spawn monster_demon_hellknight Spawns a HellKnight
spawn monster_demon_imp Spawns a Imp
spawn monster_demon_maggot Spawns a Maggot
spawn monster_demon_mancubus Spawns a Mancubus
spawn monster_demon_pinky Spawns a Pinky
spawn monster_demon_revenant Spawns a Revenant
spawn monster_demon_tick Spawns a Tick
spawn monster_demon_trite Spawns a Trite

Multiplayer: Command Cheat.
This cheat allows you to give voice repsonds in the multiplayer mode it can be used in all game types but is good to use in team death match since it does use responses for commanding your team.

You must use the console for this cheat to become activated. By pressing ctrl+alt+~(tilda) this opens up the console. You press the Num Pad keys to give the command. Cheat Effect
exec mp_vchat Activates the cheat.
Press . (Period) "That Sucked"
Press 0 (Zero) "Great Game"
Press 1 (One) "Cancel That"
Press 2 (Two) "Pull Back!"
Press 3 (Three) "Prepare for Attack"
Press 4 (Four) "Grab the Armour"
Press 5 (Five) "Cover Me"
Press 6 (Six) "Over Here"
Press 7 (Seven) "Attack Now"
Press 8 (Eight) "Move In "
Press 9 (Nine) "I'll Take That"
Press * (Star) "Hack"
Press / (Backslash) "Die Already"

Doom 3 Passwords
Cabinet Lock Codes
Enter these on the panels found on the numbered cabinets through out the game. Password Effect
0508 Martian Buddies 1 and 2
468 #669
372 #666
571 #452
836 #387
836 #386
841 #317
298 #215
371 #213
624 #117
624 #116 (second)
972 #116
715 #114
538 #112
579 #104
259 #103
364 #079
364 #078
651 #064
972 #063
142 #054 (second)
246 #054
123 #049
123 #048
123 #047
102 #039
409 #038
531 #023
347 #017
586 #013
752 #009
483 #003
396 #001
734 Weapons Storage 1 and 2
298 21D
734 Plasma Storage
584 Mars City Armory
826 Monorail Airlock
842 Valve 1 Terminal
931 Security Chief Door
725 Storage 07
463 Level 3 Access
624 #216
624 #217
627 CPU Lab A