Access Any Level
You must first enable the ''console'' (see elsewhere on the codes list), then in the game, open the console and type ''map x''. x represents the name of the level as listed below; for instance, type ''map c0a0'' for the first level.
A lot of the time you won't begin in the place you would if you accessed the map normally. You will sometimes need to use the No Clipping Mode to move out of the start positions.
Effect Code ''Forget About Freeman!'' c3a1, c3a1a, c3a1b ''We've Got Hostiles'' c1a3, c1a3a, c1a3b, c1a3c, c1a3d Anomalous Materials c1a0, c1a0a, c1a0b, c1a0d, c1a0e Apprehension c2a3, c2a3a, c2a3b, c2a3c, c2a3d, c2a3e Black Mesa Inbound c0a0, c0a0a, c0a0b, c0a0c, c0a0d, c0a0e Blast Pit c1a4, c1a4b, c1a4d, c1a4f, c1a4g, c1a4i, c1a4j, c1a4k Conclusion c5a1 Gonarch's Lair c4a2, c4a2a, c4a2b Interloper c4a1a, c4a1b, c4a1c, c4a1d, c4a1e, c4a1f Lambda Core c3a2e, c3a2, c3a2a, c3a2b, c3a2c, c3a2d, c3a2f Nihilanth c4a3 Office Complex c1a2, c1a2a, c1a2b, c1a2c, c1a2d On a Rail c2a2, c2a2a, c2a2b1, c2a2b2, c2a2c, c2a2d, c2a2e, c2a2f, c2a2g, c2a2h Power Up c2a1, c2a1a, c2a1b Questionable Ethics c2a4d, c2a4e, c2a4f, c2a4g Residue Processing c2a4, c2a4a, c2a4b, c2a4c Surface Tension c2a5, c2a5a, c2a5b, c2a5c, c2a5d, c2a5e, c2a5f, c2a5g, c2a5w, c2a5x Unforeseen Consequences c1a0c, c1a1, c1a1a, c1a1b, c1a1c, c1a1d Xen c4a1
Contributed By: Hammerite Heretic.
First, enable the console. Then, type the proper code into it to get the desired effect.
Effect Code 17 ammo for the glock pistol. give ammo_9mmclip Ammo for the 357 magnum. give ammo_357 Ammo for the glock pistol. give ammo_9mmbox Crossbow ammo. give ammo_crossbow Delete Targeted Enemy impulse 203 Eliminate Shadows r_fullbright 1 (Replace 1 with 0 to turn them back on.) Gives you a 357 Magnum give weapon_python Gives you ammo for the Egon give ammo_Egonclip Gives you ammo for the Gauss give ammo_Gaussclip Gives you ammo for the MP5 give ammo_9mmAR Gives you ammo for the RPG give ammo_RPGclip Gives you some hand grenades. give weapon_handgrenade Gives you some health. give item_healthkit Gives you some laser tripmines. give weapon_tripmine Gives you some snarks. give weapon_snark Gives you the 357 Magnum. give weapon_357 Gives you the crossbow. give weapon_crossbow Gives you the crowbar. give weapon_crowbar Gives you the glock pistol. give weapon_9mmhandgun Gives you the guass rifle. give weapon_gauss Gives you the HEV suit. give item_suit Gives you the hornet gun. give weapon_hornetgun Gives you the MP5. give weapon_mp5 Gives you the rocket launcher. give weapon_rpg Gives you the secondary ammo for the MP5 give ammo_ARgrenades Gives you the shotgun. give weapon_shotgun Instant Weapons, Ammo, and Armor impulse 101 Invincibility /god Invisibility notarget Mp5 grenade ammo. give ammo_mp5grenades Set Gravity Level sv_gravity # (Lower numbers gives less gravity, higher gives more. Normal is 800.) Shotgun ammo. give ammo_buckshot Spawn Gibs impulse 102 Spawn Marines impulse 76 Third Person chase_active 1 Third Person View thirdperson Walk Through Walls noclip
After activating the conlse, press tide (~) and enter the following.
Effect Code Control onscreen monsters. This code may not work in versions of the game. impulse 109 Creates a human grunt. Be careful, this can crash the game. impulse 76 Creates blood infront of you, like spray paint. impusle 202 Deletes target NPC or monster from the game. impulse 203 Displays AI node information impulse 195 Enemies can't hear you impulse 105 Get all weapons and armor. Enter again for more amo and/or armor. impulse 101 Lists global entities impulse 104 Spawn gibs. impulse 102 While looking at amonster, displays stats. impulse 103 While looking at an object, displays model/sprite stats. impulse 106 While looking at an object, displays the texture name. impulse 107
Contributed By: fishboy101.
Items from the console
Go to the start menu, then go to all programs, then go to accessesories, then click on command prompt. Select you Half-Life directory and type hl.exe -console then Half-Life should open. Start a new game then press the ` (tilde) key then type in these codes:
Effect Code 357 magnum ammo give ammo_357 Gives you a MP5 give weapon_mp5 Gives you a 357 Magnum give weapon_python Gives you a Crossbow give weapon_crossbow Gives you a Crowbar give weapon_crowbar Gives you a Glock pistol clip give ammo_glockclip Gives you a Guass Rifle give weapon_gauss Gives you a Hornet Gun give weapon_hornetgun Gives you a Laser Trip Mine give weapon_tripmine Gives you a Pistol give weapon_9mmhandgun Gives you a Rocket Launcher give weapon_rpg Gives you a Satchel Charge give weapon_satchel Gives you a Shotgun give weapon_shotgun Gives you Crossbow ammo ammo_crossbow Gives you some Hand Grenades give weapon_handgrenade Gives you some MP5 Grenades give ammo_mp5grenades Gives you the egon! give weapon_egon Gives you the Long Jump Module give item_longjump Gves you a Rocket give ammo_rpgclip Health give item_healthkit HEV Suit give item_suit Pistol clip give ammo_9mmclip
You go to console and you have to type
You should have only one space after gravity and before the number
It shoud look like this
Effect Code The normal jump sv_gravity 800 You are now the master sv_gravity 0-999 You can float and walk in air for amount of time.Highest jump sv_gravity 0 You can't jump at all sv_gravity 999
Contributed By: RapCloudStrife.
Artificial staircase (1)
Put Trip Mines onto a wall in form of a small staircase. You can actually jump on them and even use them to reach places you're not supposed to reach just yet or even places that aren't supposed to ever be reached like roofs that can be used as shortcuts.
Artificial staircase (2)
Use a Snark (a bug) when facing a wall and jump onto it. Directly throw another one and repeat until you've reached the height you wanted to reach. This way you are able to reach places you're not supposed to reach just yet or even places that aren't supposed to ever be reached like roofs that can be used as shortcuts.
A technique used in a lot of Ego-Shooters is the Rocket-Jump where you point a Rocket Launcher at the ground and fire off a rocket while jumping to be able to jump way higher than usually. The downside is that you lose health by doing this and since a rocket in Half-Life takes away lots of health it wouldn't really be of good use.
Instead you can exploit another possibility in Half-Life: Using the secondary fire mode of the Gauss Cannon instead of the rocket launcher will also launch you high into the air but will not directly deal any damage (only eventual falling damage).
See a picture of one of the game developers
During the mission 'On A Rail' (the part of the game where you have to stop the rockets from firing and your in the sewers or something on a trolley). Turn on 'noclip' and float towards the top of the rocket. once you get to the top you can see a pic of a developer of the game. its his face tiled about 50 times on a square. there is a ladder at the top that brings you up another level with the same pic.
P.S - this Easter Egg is only reachable using 'noclip'. there is no other way to get up that high
Contributed By: ZOLTRIX.
Console Mode - Game of the Year
Instead of ''C:SIERRAHalf-Lifehl.exe -console''
''C:SIERRAHalf-Lifehl.exe -dev -console''
Otherwise the impulse cheats don't work.
Contributed By: Togechikku64.
Enable the Console
In order to enable your console, (cheat box, basically) right click on the half life shortcut. Go down to properties. A box should open up with the properties. Go to the target tab. The line should look something like this: X:\Sierra\Half-Life\hl.exe . At the end of that put -console . Now it should look like X:\Sierra\Half-Life\hl.exe -console . Make sure that you are only using one space. Now, go back into Half Life. The main startup screen should have an extra selection that says console. Here you can enter cheats, see what's loading, and even kick people if you are on a server.
Contributed By: trev913.
Know Something We Don't?
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If you see a non-working or fake code in the list above, let us know by using our Problem Submission Form.