Half-Life Cheats for PC - Windows

Load game with the command line: hl.exe -dev -toconsole. Then, press ~ if the orange text on the screen does not disappear. During gameplay, press ~ to display the text prompt and type in sv_cheats 1....

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item_airtank item_antidote item_battery item_healthkit item_longjump item_security item_sodacan item_suit ammo_357 ammo_9mmAR ammo_9mmbox ammo_9mmclip ammo_ARgrenades ammo_buckshot ammo_crossbow ammo_...

Start the game with one of the following command line parameters...

You must be within the loading area of the desired monster for this cheat to work. For example, you cannot load up Barney while fighting the Nihilanth. Enter give <monster name> and the correspo...

You can enter bind "p" "say Hello" or bind "p" "teamsay i need backup" and press [Enter] at the console window to bind those and other chat commands....

To activate codes easier, bind them to keys. For example, type /bind v "impulse 101" at the console window to bind the "HEV suit, weapons, and ammo " code to the "V" key....

Normally when you want to spawn Barney at the Nihilanth episode, you will get an error message. To solve this problem, go to Lamba Core teleport to Xen. Enable the /noclip code. After the scientist fi...

When you enter the room where the lasers are shooting out the walls, run through. There should be a Barney (security officer) on the floor. Watch carefully and you can see the laser go across and lite...

When you begin a game and get your suit, look at the lockers. One will be marked "Freeman" (your character's last name). Walk straight to it and you will see a photo of his little boy or gir...

On the level where you are picking up your HEV suit before the accident, enable the /impulse 101 code and select the crowbar. Walk up to a scientist and wait for him to do a scripted event such as scr...

In the first level, enable the /impulse 101 code and go to either one of the two security officers (Barneys) guarding an area. Use the /impulse 76 code to spawn a Grunt near them. Do not spawn the Gru...

Enable cheat mode, then use the /impulse 76 code to activate the Grunt-O-Matic. A message to start a new game in order for it to work will appear. If you want to continue where you currently are, just...

In multi-player on LAN games, create a game and choose a level with the Zapper in it. This is the gun that you hold the Right Mouse Button to charge and shoot. Aim it at the ground and you will jump h...

In the "Apprehension" level, you will reach a part where you go through two red doors reading "CAUTION" that lead into an area with a large sunken in area, two military officers, a...

Do not waste precious pistol ammo on headcrabs. Use your crowbar, as it is more useful....

Enable the console window and go to the Hazard course. When you reach the bridge to get the hazard suit, jump of it into the sludge. You should be teleported to Nihilanth automatically....

As soon as you enter the "We've Got Hostiles" level, turn to your right and use the /noclip code to float through the glass window with the security guard being eaten by the zombie. When you...

Get the Crossbow in single player mode and do a quick save with the weapon that you want to zoom in with. Change to the Crossbow and zoom in, then quick load and your other weapon will be zoomed in. Y...

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...

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 downsid...

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 ev...

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 sup...