999 Health
Go to the console where you type all of the other cheats. When in this prompt, type "give health 999" and you will get 999 health. But, if you collect any other health, it will be back to the normal 100 health. To reverse it, type in the code again.
Cheat Codes
Note: These codes are for the retail version only.
To use these codes, press '~' while playing to call up the console, then type the desired code.
COMMAND ITEM QUANTITY give all All items All give health Health 100 give weapons All weapons All (no ammo) give ammo All ammo 100s/200b&c,etc. give armor Body Armor 200 give bodyarmor Body Armor +1 give silencer Weapon Silencer god God Mode N/A notarget No Target Mode N/A noclip No Clip Mode N/A give blue key Blue Key 1 give red key Red Key 1 give security pass Security Pass 1 give commander's head Commanders's Head 1 give power shield Power Shield 1 give armor shard Armor Shard 1 give combat armor Combat Armor 1 give power cube Power Cube 1 give slugs Slugs 10 give invulnerability Invulnerability 1 sv_gravity Change gravity 800 (800 is normal) crosshair Change crosshair 1 or 5
To use these codes, press '~' while playing to call up the console, then type the desired code.
Weapons and Ammo cheats: give all give shotgun give shells give sshotgun give machinegun give bullets give grenadelauncher give grenades give rocketlauncher give rockets Health Cheat give healthMap cheat map (demo1, demo2 or demo3) Clipping noclip does flying and walk thru walls God Mode god God mode Pacifist Mode notarget Monsters don't attack unless provoked
Unit 1 Base Unit Outer Base base1.bsp Installation base2.bsp Comm Center base3.bsp Lost Station train.bsp Unit 2 Warehouse Unit Ammo Depot bunk1.bsp Supply Station ware1.bsp Warehouse ware2.bsp Unit 3 Jail Unit Main Gate jail1.bsp Destination Center jail2.bsp Security Complex jail3.bsp Torture Chambers jail4.bsp Guard House jail5.asp Grid Control security.bsp Unit 4 Mine Unit Mine Entrance mintro.asp Upper Mines mine1.bsp Borehole mine2.bsp Drilling Area mine3.bsp Lower Mines mine4.bsp Unit 5 Factory Unit Receiving Center fact1.bsp Sudden Death fact3.bsp Processing Plant fact2.bsp Unit 6 Power Unit/Big Gun Power Plant power1.bsp The Reactor power2.bsp Cooling Facility cool1.bsp Toxic Waste Dump waste1.bsp Pumping Station 1 waste2.bsp Pumping Station 2 waste3.bsp Big Gun biggun.bsp Unit 7 Hangar Unit Outer Hangar hangar1.bsp Comm Satelite space.bsp Research Lab lab.bsp Inner Hangar hangar2.bsp Launch Command command.bsp Outlands strike.bsp Unit 8 City Unit Outer Courts city1.bsp Lower Palace city2.bsp Upper Palace city3.bsp Unit 9 Boss Levels Inner Chamber boss1.bsp Final Showdown boss2.bsp
1. In the first unit go to level 3, and walk forward until you see an Enforcer, a Rebreather and a large pool area. Kill the two Light guards, then kill the Enforcer. Next grab the Rebreather and press B to activate it. Now go inside the pool area and when you see the large crack on the bottom of the pool area go in to it by ducking because you are too tall to enter it if you are not ducking. Next search around the bottom of the pool area until you see a small tunnel. Enter it and follow until you are in a sort of room of water, hold space bar until you see a little room. It will tell you "you have found a secret", and if you did it correctly you will see two bodies and a elevator. Go in the elevator and press the button. It will say "You have found a secret level"
2. After you kill The final boss in the last level, seach around the play area were you fought the boss until you see a button on the ground. There are two of them which are on either side of the play area. You should see a hole leading downwards. Enter it and you will see a button. Look straight at the button, turn around and you will see a few ammo packs and a little crack in the wall. Shoot the crack in the wall and and follow the little passage way. At the end of the short passage it says "Welcome to the id gallery". You will see pictures of the staff of id software. Then look by the photos and step on all the buttons and a hole will appear at the end of gallary. Go down it and go to the end of the hallway. There you will find something funny.
3. In the Receiving center go to the area where you see a waterfall. Go backwards 5 or 6 paces and run all the way to the waterfall and then jump when you are about to jump of the ledge and land inside the waterfall.