Half-Life

Half-Life Cheat Codes

• Invincibility

  At the cheat screen, enter code

  Code	Effect
  Left, Square, Up, Triangle, Right, Circle, Down, X	Invincibility

• Bonus levels

  At the cheat screen, enter code

  Code	Effect
  Triangle, Square, Left, Right, Circle, X, Up, Down	Bonus levels

• Xen gravity

  At the cheat screen, enter code

  Code	Effect
  Up, Triangle, Down, X, Up, Triangle, Down, X	Xen gravity

• Alien mode

  At the cheat screen, enter code

  Code	Effect
  Up, Triangle, Up, Triangle, Up, Triangle, Up, Triangle	Alien mode

• Invisibility

  At the cheat screen, enter code

  Code	Effect
  Left, Square, Right, Circle, Left, Square, Right, Circle	Invisibility

• Slow motion mode

  At the cheat screen, enter code

  Code	Effect
  Right, Square, Up, Triangle, Right, Square, Up, Triangle	Slow motion mode

• Unlimited ammunition

  At the cheat screen, enter code

  Code	Effect
  Down, X, Left, Circle, Down, X, Left, Circle	Unlimited ammunition

• People Function

  Enter the following people code

  Code	Effect
  monster_barney	Unknown people function 2
  monster_generic	Unknown people function 4
  monster_gman	Unknown people function 5
  monster_human_grunt	Unknown people function 1
  monster_scientist	Unknown people function 3

• Windowed game play screen

  (Alternate cheat mode) Enter password without the[brackets] Start the game with the following command line parameter to enable that particular cheat code.

  Code	Effect
  [-startwindowed]	Windowed game play screen

• Force amount of RAM available to game

  (Alternate cheat mode) Enter password without the[brackets] Start the game with the following command line parameter to enable that particular cheat code.

  Code	Effect
  [-heapsize ]	Force amount of RAM available to game

• Enable developers mode

  (Alternate cheat mode) Enter password without the[brackets] Start the game with the following command line parameter to enable that particular cheat code.

  Code	Effect
  [-dev ]	Enable developers mode

• Disable IPX errors during LAN play

  (Alternate cheat mode) Enter password without the[brackets] Start the game with the following command line parameter to enable that particular cheat code.

  Code	Effect
  [-noipx ]	Disable IPX errors during LAN play

• Disable DirectSound

  (Alternate cheat mode) Enter password without the[brackets] Start the game with the following command line parameter to enable that particular cheat code.

  Code	Effect
  [-wavonly ]	Disable DirectSound

• Disable dial up networking box during LAN play.

  (Alternate cheat mode) Enter password without the[brackets] Start the game with the following command line parameter to enable that particular cheat code.

  Code	Effect
  [-noip]	Disable dial up networking box during LAN play.

• Bypass opening FMV sequences

  (Alternate cheat mode) Enter password without the[brackets] Start the game with the following command line parameter to enable that particular cheat code.

  Code	Effect
  [-nointro ]	Bypass opening FMV sequences

• Alternate latency display in v1.0.0.8 or later

  (Alternate cheat mode) Enter password without the[brackets] Start the game with the following command line parameter to enable that particular cheat code.

  Code	Effect
  [-numericping]	Alternate latency display in v1.0.0.8 or later

• Item Name Function

  Enter the item name code

  Code	Effect
  ammo_357	Unknown item name function 9
  ammo_9mmAR	Unknown item name function 10
  ammo_9mmbox	Unknown item name function 11
  ammo_9mmclip	Unknown item name function 12
  ammo_ARgrenades	Unknown item name function 13
  ammo_buckshot	Unknown item name function 14
  ammo_crossbow	Unknown item name function 15
  ammo_egonclip	Unknown item name function 16
  ammo_gaussclip	Unknown item name function 17
  ammo_glockclip	Unknown item name function 18
  ammo_mp5clip	Unknown item name function 19
  ammo_mp5grenades	Unknown item name function 20
  ammo_rpgclip	Unknown item name function 21
  item_airtank	Unknown item name function 1
  item_antidote	Unknown item name function 2
  item_battery	Unknown item name function 3
  item_healthkit	Unknown item name function 4
  item_longjump	Unknown item name function 5
  item_security	Unknown item name function 6
  item_sodacan	Unknown item name function 7
  item_suit	Unknown item name function 8
  weapon_357	Unknown item name function 22
  weapon_9mmAR	Unknown item name function 23
  weapon_9mmhandgun	Unknown item name function 24
  weapon_crossbow	Unknown item name function 25
  weapon_crowbar	Unknown item name function 26
  weapon_egon	Unknown item name function 27
  weapon_gauss	Unknown item name function 28
  weapon_glock	Unknown item name function 29
  weapon_handgrenade	Unknown item name function 30
  weapon_hornetgun	Unknown item name function 31
  weapon_mp5	Unknown item name function 32
  weapon_python	Unknown item name function 33
  weapon_quantumdestabilizer	Unknown item name function 39
  weapon_rpg	Unknown item name function 34
  weapon_satchel	Unknown item name function 35
  weapon_shotgun	Unknown item name function 36
  weapon_snark	Unknown item name function 37
  weapon_tripmine	Unknown item name function 38

• Hazard Course

  Enter the Hazard course code

  Code	Effect
  t0a0	Unknown Hazard course function 1
  t0a0a	Unknown Hazard course function 2
  t0a0b	Unknown Hazard course function 3
  t0a0b1	Unknown Hazard course function 4
  t0a0b2	Unknown Hazard course function 5
  t0a0c	Unknown Hazard course function 6
  t0a0d	Unknown Hazard course function 7

• Function Codes

  Enter the multiplayer/deatmatch code.

  Code	Effect
  boot_camp	Unknown multiplayer/deatmatch function 1
  bounce	Unknown multiplayer/deatmatch function 2
  datacore	Unknown multiplayer/deatmatch function 3
  lambda_bunker	Unknown multiplayer/deatmatch function 4
  snark_pit	Unknown multiplayer/deatmatch function 5
  stalkyard	Unknown multiplayer/deatmatch function 6
  subtransit	Unknown multiplayer/deatmatch function 7
  undertow	Unknown multiplayer/deatmatch function 8

• Monster Function

  Enter the following monster code

  Code	Effect
  monster_alien_grunt	Unknown monster function 4
  monster_alien_slave	Unknown monster function 3
  monster_apache	Unknown monster function 7
  monster_barnacle	Unknown monster function 10
  monster_bigmomma	Unknown monster function 9
  monster_bullchicken	Unknown monster function 5
  monster_gargantuan	Unknown monster function 12
  monster_headcrab	Unknown monster function 2
  monster_houndeye	Unknown monster function 14
  monster_ichthyosaur	Unknown monster function 8
  monster_nihilanth	Unknown monster function 13
  monster_sentery	Unknown monster function 1
  monster_tentacle	Unknown monster function 11
  monster_zombie	Unknown monster function 6
  xen_spore_large	Unknown monster function 18
  xen_spore_medium	Unknown monster function 17
  xen_spore_small	Unknown monster function 16
  xen_tree	Unknown monster function 15

• Corpse Function

  Enter the following corpse code

  Code	Effect
  monster_barney_dead	Unknown corpse function 1
  monster_hevsuit_dead	Unknown corpse function 3
  monster_scientist_dead	Unknown corpse function 2

• HEV suit falls out

  Activate the code while in mid-air.

  Code	Effect
  /impulse 101	HEV suit falls out

• New Weapons

  INSTRUCTIONS First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code.

  Code	Effect
  227-555-9666	Bullet GT

• Map Codes

  Enter the single player map name.

  Code	Effect
  c0a0	Unknown map function 1
  c0a0a	Unknown map function 2
  c0a0b	Unknown map function 3
  c0a0c	Unknown map function 4
  c0a0d	Unknown map function 5
  c0a0e	Unknown map function 6
  c1a0	Unknown map function 7
  c1a0a	Unknown map function 8
  c1a0b	Unknown map function 9
  c1a0c	Unknown map function 10
  c1a0d	Unknown map function 11
  c1a0e	Unknown map function 12
  c1a1	Unknown map function 13
  c1a1a	Unknown map function 14
  c1a1b	Unknown map function 15
  c1a1c	Unknown map function 16
  c1a1d	Unknown map function 17
  c1a1f	Unknown map function 18
  c1a2	Unknown map function 19
  c1a2a	Unknown map function 20
  c1a2b	Unknown map function 21
  c1a2c	Unknown map function 22
  c1a2d	Unknown map function 23
  c1a3	Unknown map function 24
  c1a3a	Unknown map function 25
  c1a3b	Unknown map function 26
  c1a3c	Unknown map function 27
  c1a3d	Unknown map function 28
  c1a4	Unknown map function 29
  c1a4b	Unknown map function 30
  c1a4d	Unknown map function 31
  c1a4e	Unknown map function 32
  c1a4f	Unknown map function 33
  c1a4g	Unknown map function 34
  c1a4i	Unknown map function 35
  c1a4j	Unknown map function 36
  c1a4k	Unknown map function 37
  c2a1	Unknown map function 38
  c2a1a	Unknown map function 39
  c2a1b	Unknown map function 40
  c2a2	Unknown map function 41
  c2a2a	Unknown map function 42
  c2a2b1	Unknown map function 43
  c2a2b2	Unknown map function 44
  c2a2c	Unknown map function 45
  c2a2d	Unknown map function 46
  c2a2e	Unknown map function 47
  c2a2f	Unknown map function 48
  c2a2g	Unknown map function 49
  c2a2h	Unknown map function 50
  c2a3	Unknown map function 51
  c2a3a	Unknown map function 52
  c2a3b	Unknown map function 53
  c2a3c	Unknown map function 54
  c2a3d	Unknown map function 55
  c2a3e	Unknown map function 56
  c2a4	Unknown map function 57
  c2a4a	Unknown map function 58
  c2a4b	Unknown map function 59
  c2a4c	Unknown map function 60
  c2a4d	Unknown map function 61
  c2a4e	Unknown map function 62
  c2a4f	Unknown map function 63
  c2a4g	Unknown map function 64
  c2a5	Unknown map function 65
  c2a5a	Unknown map function 66
  c2a5b	Unknown map function 67
  c2a5c	Unknown map function 68
  c2a5d	Unknown map function 69
  c2a5e	Unknown map function 70
  c2a5f	Unknown map function 71
  c2a5g	Unknown map function 72
  c2a5w	Unknown map function 73
  c2a5x	Unknown map function 74
  c3a1	Unknown map function 75
  c3a1a	Unknown map function 76
  c3a1b	Unknown map function 77
  c3a2	Unknown map function 78
  c3a2a	Unknown map function 79
  c3a2b	Unknown map function 80
  c3a2c	Unknown map function 81
  c3a2d	Unknown map function 82
  c3a2e	Unknown map function 83
  c3a2f	Unknown map function 84
  c4a1	Unknown map function 85
  c4a1a	Unknown map function 86
  c4a1b	Unknown map function 87
  c4a1c	Unknown map function 88
  c4a1d	Unknown map function 89
  c4a1e	Unknown map function 90
  c4a1f	Unknown map function 91
  c4a2	Unknown map function 92
  c4a2a	Unknown map function 93
  c4a2b	Unknown map function 94
  c4a3	Unknown map function 95
  c5a1	Unknown map function 96

• Delete monster or NPC from world

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /impulse 203	Delete monster or NPC from world

• AI node Codes

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /impulse 195	AI node information 1
  /impulse 196	AI node information 2
  /impulse 197	AI node information 3
  /impulse 199	AI node information 4

• Return to first person view

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /firstperson	Return to first person view

• Third person view

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /thirdperson	Third person view

• Opponents ignore character

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /notarget	Opponents ignore character

• Obtain item

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /give	Obtain item

• No clipping mode

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /noclip	No clipping mode

• Map select

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /map	Map select

• Suicide

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /kill	Suicide

• Developer mode off

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /developer 0	Developer mode off

• Verbose developer mode

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /developer 2	Verbose developer mode

• Developer mode on

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /developer 1	Developer mode on

• All weapons and ammo

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /impulse 101	All weapons and ammo

• Adjust gravity

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /sv_gravity <-999 - 999999>	Adjust gravity

• Auto-reload enabled

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /+reload	Auto-reload enabled

• Auto-reload disabled

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /-reload	Auto-reload disabled

• Speak word

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /speak	Speak word

• Control onscreen monsters

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /impulse 109	Control onscreen monsters

• Texture name, while looking at object

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /impulse 107	Texture name, while looking at object

• Model/sprite stats, while looking at target

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /impulse 106	Model/sprite stats, while looking at target

• Silent player

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /impulse 105	Silent player

• List global entities

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /impulse 104	List global entities

• Monster stats, while looking at monster

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /impulse 103	Monster stats, while looking at monster

• Spawns gibs and blood

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /impulse 102	Spawns gibs and blood

• HEV suit, weapons, and ammo

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /impulse 101	HEV suit, weapons, and ammo

• Toggle game speed

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /host_framerate <0,1>	Toggle game speed

• Toggle light amplifier

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /r_fullbright <0,1>	Toggle light amplifier

• See things brightly without flashlight

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /lambert -1.0001	See things brightly without flashlight

• Speak sentence

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /speak	Speak sentence

• God mode

  First load the game with the command line: hl.exe -dev -toconsole. Now, push ~ if the orange text on the screen does not disappear. While playing the game, push ~ to display the text prompt and type in sv_cheats 1. Push ~ and submit the following code

  Code	Effect
  /god	God mode