Half-Life Cheats For PC

  1. 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 

  2. Console Mode - Game of the Year

    Instead of ''C:SIERRAHalf-Lifehl.exe -console''

    it's

    ''C:SIERRAHalf-Lifehl.exe -dev -console''

    Otherwise the impulse cheats don't work.

    Contributed by: Togechikku64 

  3. 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.

    Contributed by: KeeperBvK 

  4. 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.

    Contributed by: KeeperBvK 

  5. Gauss Cannon-Jump

    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).

    Contributed by: KeeperBvK 

  6. 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 

  7. 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.

    Code Effect
    c0a0, c0a0a, c0a0b, c0a0c, c0a0d, c0a0e Black Mesa Inbound
    c1a0, c1a0a, c1a0b, c1a0d, c1a0e Anomalous Materials
    c1a0c, c1a1, c1a1a, c1a1b, c1a1c, c1a1d Unforeseen Consequences
    c1a2, c1a2a, c1a2b, c1a2c, c1a2d Office Complex
    c1a3, c1a3a, c1a3b, c1a3c, c1a3d ''We've Got Hostiles''
    c1a4, c1a4b, c1a4d, c1a4f, c1a4g, c1a4i, c1a4j, c1a4k Blast Pit
    c2a1, c2a1a, c2a1b Power Up
    c2a2, c2a2a, c2a2b1, c2a2b2, c2a2c, c2a2d, c2a2e, c2a2f, c2a2g, c2a2h On a Rail
    c2a3, c2a3a, c2a3b, c2a3c, c2a3d, c2a3e Apprehension
    c2a4, c2a4a, c2a4b, c2a4c Residue Processing
    c2a4d, c2a4e, c2a4f, c2a4g Questionable Ethics
    c2a5, c2a5a, c2a5b, c2a5c, c2a5d, c2a5e, c2a5f, c2a5g, c2a5w, c2a5x Surface Tension
    c3a1, c3a1a, c3a1b ''Forget About Freeman!''
    c3a2e, c3a2, c3a2a, c3a2b, c3a2c, c3a2d, c3a2f Lambda Core
    c4a1 Xen
    c4a2, c4a2a, c4a2b Gonarch's Lair
    c4a1a, c4a1b, c4a1c, c4a1d, c4a1e, c4a1f Interloper
    c4a3 Nihilanth
    c5a1 Conclusion

    Contributed by: Hammerite Heretic 

  8. Console Codes

    First, enable the console. Then, type the proper code into it to get the desired effect.

    Code Effect
    impulse 203 Delete Targeted Enemy
    r_fullbright 1 (Replace 1 with 0 to turn them back on.) Eliminate Shadows
    sv_gravity # (Lower numbers gives less gravity, higher gives more. Normal is 800.) Set Gravity Level
    impulse 76 Spawn Marines
    thirdperson Third Person View
    impulse 101 Instant Weapons, Ammo, and Armor
    /god Invincibility
    noclip Walk Through Walls
    impulse 102 Spawn Gibs
    notarget Invisibility
    give ammo_357 Ammo for the 357 magnum.
    give ammo_9mmbox Ammo for the glock pistol.
    give ammo_9mmclip 17 ammo for the glock pistol.
    give ammo_crossbow Crossbow ammo.
    give ammo_mp5grenades Mp5 grenade ammo.
    give item_healthkit Gives you some health.
    give weapon_9mmhandgun Gives you the glock pistol.
    give weapon_357 Gives you the 357 Magnum.
    give weapon_crossbow Gives you the crossbow.
    give weapon_crowbar Gives you the crowbar.
    give weapon_handgrenade Gives you some hand grenades.
    give weapon_mp5 Gives you the MP5.
    give weapon_hornetgun Gives you the hornet gun.
    give weapon_gauss Gives you the guass rifle.
    give weapon_rpg Gives you the rocket launcher.
    give weapon_shotgun Gives you the shotgun.
    give weapon_snark Gives you some snarks.
    give weapon_tripmine Gives you some laser tripmines.
    give item_suit Gives you the HEV suit.
    chase_active 1 Third Person
    give ammo_buckshot Shotgun ammo.
    give ammo_RPGclip Gives you ammo for the RPG
    give ammo_Egonclip Gives you ammo for the Egon
    give ammo_Gaussclip Gives you ammo for the Gauss
    give ammo_9mmAR Gives you ammo for the MP5
    give ammo_ARgrenades Gives you the secondary ammo for the MP5
    give weapon_python Gives you a 357 Magnum

    Contributed by: El Greco 

  9. Impulse Codes

    After activating the conlse, press tide (~) and enter the following.

    Code Effect
    impulse 101 Get all weapons and armor. Enter again for more amo and/or armor.
    impulse 102 Spawn gibs.
    impulse 76 Creates a human grunt. Be careful, this can crash the game.
    impulse 103 While looking at amonster, displays stats.
    impulse 104 Lists global entities
    impulse 105 Enemies can't hear you
    impulse 106 While looking at an object, displays model/sprite stats.
    impulse 107 While looking at an object, displays the texture name.
    impulse 109 Control onscreen monsters. This code may not work in versions of the game.
    impulse 195 Displays AI node information
    impusle 202 Creates blood infront of you, like spray paint.
    impulse 203 Deletes target NPC or monster from the game.

    Contributed by: fishboy101 

  10. 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:

    Code Effect
    give ammo_357 357 magnum ammo
    give ammo_9mmclip Pistol clip
    give item_suit HEV Suit
    give item_healthkit Health
    give weapon_egon Gives you the egon!
    give weapon_gauss Gives you a Guass Rifle
    give weapon_mp5 Gives you a MP5
    give weapon_shotgun Gives you a Shotgun
    give weapon_crossbow Gives you a Crossbow
    give weapon_9mmhandgun Gives you a Pistol
    give weapon_handgrenade Gives you some Hand Grenades
    give weapon_rpg Gives you a Rocket Launcher
    give weapon_crowbar Gives you a Crowbar
    give ammo_mp5grenades Gives you some MP5 Grenades
    give weapon_satchel Gives you a Satchel Charge
    give ammo_rpgclip Gves you a Rocket
    give weapon_hornetgun Gives you a Hornet Gun
    give ammo_glockclip Gives you a Glock pistol clip
    give weapon_python Gives you a 357 Magnum
    give weapon_tripmine Gives you a Laser Trip Mine
    ammo_crossbow Gives you Crossbow ammo
    give item_longjump Gives you the Long Jump Module
    give item_battery Gives you a HEV Suit Battery (+15 armor)

    Contributed by: strongbad1234 

  11. Super Jump

    You go to console and you have to type
    X=any number,0-999
    sv_gravity X
    You should have only one space after gravity and before the number
    It shoud look like this
    sv_gravity 111


    Code Effect
    sv_gravity 0 You can float and walk in air for amount of time.Highest jump
    sv_gravity 800 The normal jump
    sv_gravity 999 You can't jump at all
    sv_gravity 0-999 You are now the master

    Contributed by: RapCloudStrife 

Walkthroughs & FAQs

Type Name File Size
Walkthrough Walkthrough by sdunigan 360K
FAQ/Walkthrough FAQ/Walkthrough by antseezee 153K
FAQ/Walkthrough FAQ/Walkthrough by arkena 163K
FAQ/Walkthrough FAQ/Walkthrough by RainingMetal 102K
Other Weapon Guide by Yojimbo_Beta 55K
FAQ/Walkthrough FAQ/Walkthrough by NotoriousNick 82K
FAQ/Walkthrough FAQ/Walkthrough by Ultimate_Timmeh 103K
FAQ/Walkthrough FAQ/Walkthrough by SefSermak 185K
FAQ/Walkthrough FAQ/Walkthrough by El Greco 108K
Other Game Script by wel 28K
FAQ/Walkthrough FAQ/Walkthrough by cless alvein 65K
FAQ/Walkthrough FAQ/Walkthrough by black hole sun 86K
FAQ/Walkthrough FAQ/Walkthrough by DC 58K
Other Multiplayer Guide by Josh R 67K
Other Multiplayer Guide by TWuyts 27K
Other Multiplayer Guide by SBolle 74K
Technical FAQ Technical FAQ by HQH 210K

Half-Life Cheats For Dreamcast

  1. Invincibility

    Enable this code on the Access Codes menu to become invulnerable.

    Code Effect
    OTIS LOVES DREAMCAST Invincibility

    Contributed by: Shurikane 

  2. Level Passcodes

    Enter these Passcodes to unlock the corresponding level

    Code Effect
    Gordon goes to work Anomalous Materials
    Gordon teaches physics Unforseen Consequences
    Files and fear Office Complex
    Soldiers visit Black Mesa "We've got hostiles"
    Safe and Sound Blast Pit
    Big is Beautiful Power Up
    Trains and rockets On a rail
    Fear finds Gordon Apprehension
    Recycle or Die Residue Processing
    Regression brings progress Quesionable Ethics
    Combat and death Surface Tension
    Soldiers eat tacos "Forget about Freeman!"
    Scientists at work Lambda Core
    Fear and Gravity Xen
    Panic in Xen Interloper
    Xenophobia and firepower Gornarch's Lair
    Panic and die Nihilanth
    Answers beget questions Endgame

    Contributed by: My Dreamcast 

  3. See the Ending

    Input this at the Secrets section, by moving the three bars up and down until they spell out this "sentence"

    Code Effect
    Answers Begat Questions Ending

    Contributed by: USC 

  4. Half Life : Blue Shift

    Input these in the "Secrets" section, in order to access the levels of Half Life : Blue Shift.

    Code Effect
    Barney goes to Work Insecurity
    Red is Scary Duty Calls
    Combat and Trains Captive Freight
    Barney visits Xen Focal Point
    Power is Progress Power Struggle
    Physics is Beautiful A Leap Of Faith

    Contributed by: USC 

  5. Slow motion code

    By completing the training mission you will receive this code. Under Options select Enter Codes, using the three word wheels make them show the proper phrase and hit A to verify.

    Code Effect
    Actions Ignore Silence Slow Motion

    Contributed by: phunkking 

  6. Unlimited Ammo

    In the options screen under codes, enter the following, push a to confirm then go into trigger codes and turn it on. It told me this after I beat the blue shift game.

    Code Effect
    DREAMCAST GIVES FIREPOWER Unlimited Ammo

    Contributed by: scallopedllama 

Walkthroughs & FAQs

Type Name File Size
Walkthrough Walkthrough by sdunigan 360K
Other Weapon Guide by Yojimbo_Beta 55K
FAQ/Walkthrough FAQ/Walkthrough by NotoriousNick 82K

Half-Life Cheats For PlayStation 2

  1. Uplink Mod

    For this code to work, you will need a copy of Playstation Magazine Issue 57 (The one with Jango Fett on the cover) and it's demo disc. From the Half-Life main menu go to option and the the cheats menu. Enter the following cheat: Triangle, Square, Left, Right, Circle, X, Up, Down. It should open an extras menu on the options screen. Go to the extras menu and it should say opening disc tray. When it opens remove the Half-Life disc and put in the issue 57 disc and it should load the Half-Life Uplink Mod. Enjoy!

    Contributed by: Bahamut NEO ZERO 

  2. Bonus Alien Mission

    Get an A-grade on all 9 of the Decay missions. If you successfully do this, you'll get to play a 10th level as a Vortigaunt alien. Getting an A-grade on this level will formally unlock the Alien Mode. (Note: the best way to ensure an A-grade for a level is to get at least 25 kills.)

    Contributed by: Cold NRG 

  3. Unlock all Decay missions

    Go to the Options, then Cheats. To enter the code you must have two controllers.

    Code Effect
    p2_R3, p1_L3, p1_up, p1_up, p2_down, p2_down, p1_left, p1_right, p2_left, p2_right, p1_X, p1_O, START All Decay missions unlocked including bonus mission Xen Attacks

    Contributed by: Hoaxer87 

  4. Cheat menu cheats

    Code Effect
    Up, Triangle, Up, Triangle, Up, Triangle, Up and Triangle Alien Mode
    Up, Triangle, Down, X, Up, Triangle, Down, X Xen gravity
    Right, Square, Up, Triangle, Right, Square, Up, Triangle Slow motion
    Left, Square, Right, Circle, Left, Square, Right, Circle Invisibility
    Left, Square, Up, Triangle, Right, Circle, Down, X Invincibility
    Down, X, Left, O, Down, X, Left, O Infinite Ammo

    Contributed by: ElFreakoKid 

Walkthroughs & FAQs

Type Name File Size
Walkthrough Walkthrough by sdunigan 360K
FAQ/Walkthrough FAQ/Walkthrough by arkena 163K
FAQ/Walkthrough FAQ/Walkthrough by RainingMetal 102K
Other Weapon Guide by Yojimbo_Beta 55K
FAQ/Walkthrough FAQ/Walkthrough by NotoriousNick 82K
FAQ/Walkthrough FAQ/Walkthrough by SefSermak 185K
Other Uplink FAQ/Walkthrough by Cold NRG 17K
Other Game Script by wel 28K
FAQ/Walkthrough FAQ/Walkthrough by cless alvein 65K
FAQ/Walkthrough FAQ/Walkthrough by black hole sun 86K
FAQ/Walkthrough FAQ/Walkthrough by GMorrissey 181K
Other Decay (Co-Op) Mission Walkthrough by Evil Nep Brothers 81K
FAQ/Walkthrough FAQ/Walkthrough by Collider 21K
FAQ/Walkthrough FAQ/Walkthrough by DC 58K