Cheats, codes, and secrets for the PC game Half-Life. God mode Notes: 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 Cheat code: /god Adjust gravity Notes: 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 Cheat code: /sv_gravity All weapons and ammo Notes: 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 Cheat code: /impulse 101 Developer mode off Notes: 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 Cheat code: /developer 0 Suicide Notes: 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 Cheat code: /kill Map select Notes: 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 Cheat code: /map No clipping mode Notes: 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 Cheat code: /noclip Obtain item Notes: 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 Cheat code: /give Opponents ignore character Notes: 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 Cheat code: /notarget Third person view Notes: 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 Cheat code: /thirdperson Return to first person view Notes: 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 Cheat code: /firstperson Auto-reload enabled Notes: 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 Cheat code: /+reload Auto-reload disabled Notes: 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 Cheat code: /-reload Speak word Notes: 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 Cheat code: /speak Speak sentence Notes: 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 Cheat code: /speak See things brightly without flashlight Notes: 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 Cheat code: /lambert -1.0001 Toggle game speed Notes: 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 Cheat code: /host_framerate HEV suit, weapons, and ammo Notes: 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 Cheat code: /impulse 101 Monster stats, while looking at monster Notes: 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 Cheat code: /impulse 103 List global entities Notes: 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 Cheat code: /impulse 104 Silent player Notes: 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 Cheat code: /impulse 105 Model/sprite stats, while looking at target Notes: 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 Cheat code: /impulse 106 Texture name, while looking at object Notes: 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 Cheat code: /impulse 107 Control onscreen monsters Notes: 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 Cheat code: /impulse 109 AI node information 1 Notes: 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 Cheat code: /impulse 195 AI node information 2 Notes: 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 Cheat code: /impulse 196 AI node information 3 Notes: 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 Cheat code: /impulse 197 AI node information 4 Notes: 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 Cheat code: /impulse 199 Delete monster or NPC from world Notes: 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 Cheat code: /impulse 203 Unknown map function 1 Notes: Enter the single player map name. Cheat code: c0a0 Unknown map function 2 Notes: Enter the single player map name. Cheat code: c0a0a Unknown map function 3 Notes: Enter the single player map name. Cheat code: c0a0b Unknown map function 4 Notes: Enter the single player map name. Cheat code: c0a0c Unknown map function 5 Notes: Enter the single player map name. Cheat code: c0a0d Unknown map function 6 Notes: Enter the single player map name. Cheat code: c0a0e Unknown map function 7 Notes: Enter the single player map name. Cheat code: c1a0 Unknown map function 8 Notes: Enter the single player map name. Cheat code: c1a0a Unknown map function 9 Notes: Enter the single player map name. Cheat code: c1a0b Unknown map function 10 Notes: Enter the single player map name. Cheat code: c1a0c Unknown map function 11 Notes: Enter the single player map name. Cheat code: c1a0d Unknown map function 12 Notes: Enter the single player map name. Cheat code: c1a0e Unknown map function 13 Notes: Enter the single player map name. Cheat code: c1a1 Unknown map function 14 Notes: Enter the single player map name. Cheat code: c1a1a Unknown map function 15 Notes: Enter the single player map name. Cheat code: c1a1b Unknown map function 16 Notes: Enter the single player map name. Cheat code: c1a1c Unknown map function 17 Notes: Enter the single player map name. Cheat code: c1a1d Unknown map function 18 Notes: Enter the single player map name. Cheat code: c1a1f Unknown map function 19 Notes: Enter the single player map name. Cheat code: c1a2 Unknown map function 20 Notes: Enter the single player map name. Cheat code: c1a2a Unknown map function 21 Notes: Enter the single player map name. Cheat code: c1a2b Unknown map function 22 Notes: Enter the single player map name. Cheat code: c1a2c Unknown map function 23 Notes: Enter the single player map name. Cheat code: c1a2d Unknown map function 24 Notes: Enter the single player map name. Cheat code: c1a3 Unknown map function 25 Notes: Enter the single player map name. Cheat code: c1a3a Unknown map function 26 Notes: Enter the single player map name. Cheat code: c1a3b Unknown map function 27 Notes: Enter the single player map name. Cheat code: c1a3c Unknown map function 28 Notes: Enter the single player map name. Cheat code: c1a3d Unknown map function 29 Notes: Enter the single player map name. Cheat code: c1a4 Unknown map function 30 Notes: Enter the single player map name. Cheat code: c1a4b Unknown map function 31 Notes: Enter the single player map name. Cheat code: c1a4d Unknown map function 32 Notes: Enter the single player map name. Cheat code: c1a4e Unknown map function 33 Notes: Enter the single player map name. Cheat code: c1a4f Unknown map function 34 Notes: Enter the single player map name. Cheat code: c1a4g Unknown map function 35 Notes: Enter the single player map name. Cheat code: c1a4i Unknown map function 36 Notes: Enter the single player map name. Cheat code: c1a4j Unknown map function 37 Notes: Enter the single player map name. Cheat code: c1a4k Unknown map function 38 Notes: Enter the single player map name. Cheat code: c2a1 Unknown map function 39 Notes: Enter the single player map name. Cheat code: c2a1a Unknown map function 40 Notes: Enter the single player map name. Cheat code: c2a1b Unknown map function 41 Notes: Enter the single player map name. Cheat code: c2a2 Unknown map function 42 Notes: Enter the single player map name. Cheat code: c2a2a Unknown map function 43 Notes: Enter the single player map name. Cheat code: c2a2b1 Unknown map function 44 Notes: Enter the single player map name. Cheat code: c2a2b2 Unknown map function 45 Notes: Enter the single player map name. Cheat code: c2a2c Unknown map function 46 Notes: Enter the single player map name. Cheat code: c2a2d Unknown map function 47 Notes: Enter the single player map name. Cheat code: c2a2e Unknown map function 48 Notes: Enter the single player map name. Cheat code: c2a2f Unknown map function 49 Notes: Enter the single player map name. Cheat code: c2a2g Unknown map function 50 Notes: Enter the single player map name. Cheat code: c2a2h Unknown map function 51 Notes: Enter the single player map name. Cheat code: c2a3 Unknown map function 52 Notes: Enter the single player map name. Cheat code: c2a3a Unknown map function 53 Notes: Enter the single player map name. Cheat code: c2a3b Unknown map function 54 Notes: Enter the single player map name. Cheat code: c2a3c Unknown map function 55 Notes: Enter the single player map name. Cheat code: c2a3d Unknown map function 56 Notes: Enter the single player map name. Cheat code: c2a3e Unknown map function 57 Notes: Enter the single player map name. Cheat code: c2a4 Unknown map function 58 Notes: Enter the single player map name. Cheat code: c2a4a Unknown map function 59 Notes: Enter the single player map name. Cheat code: c2a4b Unknown map function 60 Notes: Enter the single player map name. Cheat code: c2a4c Unknown map function 61 Notes: Enter the single player map name. Cheat code: c2a4d Unknown map function 62 Notes: Enter the single player map name. Cheat code: c2a4e Unknown map function 63 Notes: Enter the single player map name. Cheat code: c2a4f Unknown map function 64 Notes: Enter the single player map name. Cheat code: c2a4g Unknown map function 65 Notes: Enter the single player map name. Cheat code: c2a5 Unknown map function 66 Notes: Enter the single player map name. Cheat code: c2a5a Unknown map function 67 Notes: Enter the single player map name. Cheat code: c2a5b Unknown map function 68 Notes: Enter the single player map name. Cheat code: c2a5c Unknown map function 69 Notes: Enter the single player map name. Cheat code: c2a5d Unknown map function 70 Notes: Enter the single player map name. Cheat code: c2a5e Unknown map function 71 Notes: Enter the single player map name. Cheat code: c2a5f Unknown map function 72 Notes: Enter the single player map name. Cheat code: c2a5g Unknown map function 73 Notes: Enter the single player map name. Cheat code: c2a5w Unknown map function 74 Notes: Enter the single player map name. Cheat code: c2a5x Unknown map function 75 Notes: Enter the single player map name. Cheat code: c3a1 Unknown map function 76 Notes: Enter the single player map name. Cheat code: c3a1a Unknown map function 77 Notes: Enter the single player map name. Cheat code: c3a1b Unknown map function 78 Notes: Enter the single player map name. Cheat code: c3a2 Unknown map function 79 Notes: Enter the single player map name. Cheat code: c3a2a Unknown map function 80 Notes: Enter the single player map name. Cheat code: c3a2b Unknown map function 81 Notes: Enter the single player map name. Cheat code: c3a2c Unknown map function 82 Notes: Enter the single player map name. Cheat code: c3a2d Unknown map function 83 Notes: Enter the single player map name. Cheat code: c3a2e Unknown map function 84 Notes: Enter the single player map name. Cheat code: c3a2f Unknown map function 85 Notes: Enter the single player map name. Cheat code: c4a1 Unknown map function 86 Notes: Enter the single player map name. Cheat code: c4a1a Unknown map function 87 Notes: Enter the single player map name. Cheat code: c4a1b Unknown map function 88 Notes: Enter the single player map name. Cheat code: c4a1c Unknown map function 89 Notes: Enter the single player map name. Cheat code: c4a1d Unknown map function 90 Notes: Enter the single player map name. Cheat code: c4a1e Unknown map function 91 Notes: Enter the single player map name. Cheat code: c4a1f Unknown map function 92 Notes: Enter the single player map name. Cheat code: c4a2 Unknown map function 93 Notes: Enter the single player map name. Cheat code: c4a2a Unknown map function 94 Notes: Enter the single player map name. Cheat code: c4a2b Unknown map function 95 Notes: Enter the single player map name. Cheat code: c4a3 Unknown map function 96 Notes: Enter the single player map name. Cheat code: c5a1 Unknown multiplayer/deatmatch function 1 Notes: Enter the multiplayer/deatmatch code. Cheat code: boot_camp Unknown multiplayer/deatmatch function 2 Notes: Enter the multiplayer/deatmatch code. Cheat code: bounce Unknown multiplayer/deatmatch function 3 Notes: Enter the multiplayer/deatmatch code. Cheat code: datacore Unknown multiplayer/deatmatch function 4 Notes: Enter the multiplayer/deatmatch code. Cheat code: lambda_bunker Unknown multiplayer/deatmatch function 5 Notes: Enter the multiplayer/deatmatch code. Cheat code: snark_pit Unknown multiplayer/deatmatch function 6 Notes: Enter the multiplayer/deatmatch code. Cheat code: stalkyard Unknown multiplayer/deatmatch function 7 Notes: Enter the multiplayer/deatmatch code. Cheat code: subtransit Unknown multiplayer/deatmatch function 8 Notes: Enter the multiplayer/deatmatch code. Cheat code: undertow Unknown Hazard course function 1 Notes: Enter the Hazard course code Cheat code: t0a0 Unknown Hazard course function 2 Notes: Enter the Hazard course code Cheat code: t0a0a Unknown Hazard course function 3 Notes: Enter the Hazard course code Cheat code: t0a0b Unknown Hazard course function 4 Notes: Enter the Hazard course code Cheat code: t0a0b1 Unknown Hazard course function 5 Notes: Enter the Hazard course code Cheat code: t0a0b2 Unknown Hazard course function 6 Notes: Enter the Hazard course code Cheat code: t0a0c Unknown Hazard course function 7 Notes: Enter the Hazard course code Cheat code: t0a0d Unknown item name function 1 Notes: Enter the item name code Cheat code: item_airtank Unknown item name function 2 Notes: Enter the item name code Cheat code: item_antidote Unknown item name function 3 Notes: Enter the item name code Cheat code: item_battery Unknown item name function 4 Notes: Enter the item name code Cheat code: item_healthkit Unknown item name function 5 Notes: Enter the item name code Cheat code: item_longjump Unknown item name function 6 Notes: Enter the item name code Cheat code: item_security Unknown item name function 7 Notes: Enter the item name code Cheat code: item_sodacan Unknown item name function 8 Notes: Enter the item name code Cheat code: item_suit Unknown item name function 9 Notes: Enter the item name code Cheat code: ammo_357 Unknown item name function 10 Notes: Enter the item name code Cheat code: ammo_9mmAR Unknown item name function 11 Notes: Enter the item name code Cheat code: ammo_9mmbox Unknown item name function 12 Notes: Enter the item name code Cheat code: ammo_9mmclip Unknown item name function 13 Notes: Enter the item name code Cheat code: ammo_ARgrenades Unknown item name function 14 Notes: Enter the item name code Cheat code: ammo_buckshot Unknown item name function 15 Notes: Enter the item name code Cheat code: ammo_crossbow Unknown item name function 16 Notes: Enter the item name code Cheat code: ammo_egonclip Unknown item name function 17 Notes: Enter the item name code Cheat code: ammo_gaussclip Unknown item name function 18 Notes: Enter the item name code Cheat code: ammo_glockclip Unknown item name function 19 Notes: Enter the item name code Cheat code: ammo_mp5clip Unknown item name function 20 Notes: Enter the item name code Cheat code: ammo_mp5grenades Unknown item name function 21 Notes: Enter the item name code Cheat code: ammo_rpgclip Unknown item name function 22 Notes: Enter the item name code Cheat code: weapon_357 Unknown item name function 23 Notes: Enter the item name code Cheat code: weapon_9mmAR Unknown item name function 24 Notes: Enter the item name code Cheat code: weapon_9mmhandgun Unknown item name function 25 Notes: Enter the item name code Cheat code: weapon_crossbow Unknown item name function 26 Notes: Enter the item name code Cheat code: weapon_crowbar Unknown item name function 27 Notes: Enter the item name code Cheat code: weapon_egon Unknown item name function 28 Notes: Enter the item name code Cheat code: weapon_gauss Unknown item name function 29 Notes: Enter the item name code Cheat code: weapon_glock Unknown item name function 30 Notes: Enter the item name code Cheat code: weapon_handgrenade Unknown item name function 31 Notes: Enter the item name code Cheat code: weapon_hornetgun Unknown item name function 32 Notes: Enter the item name code Cheat code: weapon_mp5 Unknown item name function 33 Notes: Enter the item name code Cheat code: weapon_python Unknown item name function 34 Notes: Enter the item name code Cheat code: weapon_rpg Unknown item name function 35 Notes: Enter the item name code Cheat code: weapon_satchel Unknown item name function 36 Notes: Enter the item name code Cheat code: weapon_shotgun Unknown item name function 37 Notes: Enter the item name code Cheat code: weapon_snark Unknown item name function 38 Notes: Enter the item name code Cheat code: weapon_tripmine Unknown item name function 39 Notes: Enter the item name code Cheat code: weapon_quantumdestabilizer Alternate latency display in v1.0.0.8 or later Notes: (Alternate cheat mode) Enter password without the[brackets] Start the game with the following command line parameter to enable that particular cheat code. Cheat code: [-numericping] Bypass opening FMV sequences Notes: (Alternate cheat mode) Enter password without the[brackets] Start the game with the following command line parameter to enable that particular cheat code. Cheat code: [-nointro ] Disable dial up networking box during LAN play. Notes: (Alternate cheat mode) Enter password without the[brackets] Start the game with the following command line parameter to enable that particular cheat code. Cheat code: [-noip] Disable DirectSound Notes: (Alternate cheat mode) Enter password without the[brackets] Start the game with the following command line parameter to enable that particular cheat code. Cheat code: [-wavonly ] Disable IPX errors during LAN play Notes: (Alternate cheat mode) Enter password without the[brackets] Start the game with the following command line parameter to enable that particular cheat code. Cheat code: [-noipx ] Enable developers mode Notes: (Alternate cheat mode) Enter password without the[brackets] Start the game with the following command line parameter to enable that particular cheat code. Cheat code: [-dev ] Force amount of RAM available to game Notes: (Alternate cheat mode) Enter password without the[brackets] Start the game with the following command line parameter to enable that particular cheat code. Cheat code: [-heapsize ] Windowed game play screen Notes: (Alternate cheat mode) Enter password without the[brackets] Start the game with the following command line parameter to enable that particular cheat code. Cheat code: [-startwindowed] Unknown people function 1 Notes: Enter the following people code Cheat code: monster_human_grunt Unknown people function 2 Notes: Enter the following people code Cheat code: monster_barney Unknown people function 3 Notes: Enter the following people code Cheat code: monster_scientist Unknown people function 4 Notes: Enter the following people code Cheat code: monster_generic Unknown people function 5 Notes: Enter the following people code Cheat code: monster_gman Unknown monster function 1 Notes: Enter the following monster code Cheat code: monster_sentery Unknown monster function 2 Notes: Enter the following monster code Cheat code: monster_headcrab Unknown monster function 3 Notes: Enter the following monster code Cheat code: monster_alien_slave Unknown monster function 4 Notes: Enter the following monster code Cheat code: monster_alien_grunt Unknown monster function 5 Notes: Enter the following monster code Cheat code: monster_bullchicken Unknown monster function 6 Notes: Enter the following monster code Cheat code: monster_zombie Unknown monster function 7 Notes: Enter the following monster code Cheat code: monster_apache Unknown monster function 8 Notes: Enter the following monster code Cheat code: monster_ichthyosaur Unknown monster function 9 Notes: Enter the following monster code Cheat code: monster_bigmomma Unknown monster function 10 Notes: Enter the following monster code Cheat code: monster_barnacle Unknown monster function 11 Notes: Enter the following monster code Cheat code: monster_tentacle Unknown monster function 12 Notes: Enter the following monster code Cheat code: monster_gargantuan Unknown monster function 13 Notes: Enter the following monster code Cheat code: monster_nihilanth Unknown monster function 14 Notes: Enter the following monster code Cheat code: monster_houndeye Unknown monster function 15 Notes: Enter the following monster code Cheat code: xen_tree Unknown monster function 16 Notes: Enter the following monster code Cheat code: xen_spore_small Unknown monster function 17 Notes: Enter the following monster code Cheat code: xen_spore_medium Unknown monster function 18 Notes: Enter the following monster code Cheat code: xen_spore_large Unknown corpse function 1 Notes: Enter the following corpse code Cheat code: monster_barney_dead Unknown corpse function 2 Notes: Enter the following corpse code Cheat code: monster_scientist_dead Unknown corpse function 3 Notes: Enter the following corpse code Cheat code: monster_hevsuit_dead HEV suit falls out Notes: Activate the code while in mid-air. Cheat code: /impulse 101
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