You can play all the Half-Life levels that Gordon Freeman went through as Adrion Shepard, but in the lab none of the scientists will talk to you.
Approach the Boss of Opposing Force to hear backwards audio composed of the phrase “To win the game you must kill me Randy Pitchford” when played correctly. Randy Pitchford is the leader of the development team at Gearbox Software.
Load the game with the “hl.exe -dev -console -game gearbox” command line. Then while playing the game, press ~ to display the console and enter one of the following codes to activate the corresponding cheat function:
| Result | Cheat Code |
| God mode | /god |
| All weapons with full ammo | /impulse 101 |
| No clipping mode | /noclip |
| Adjust gravity | sv_gravity [-999 - 999999] |
| Spawn indicated item | /give [item name] |
| Spawn indicated weapon | /give weapon_[weapon name] |
| Spawn indicated ammo | /give ammo_[ammo name] |
| Map select | /map [map name] |
Use one of the following weapon names with the “/give weapon_[weapon name]” code:
| Weapon | Weapon name |
| .357 Magnum | 357 |
| 9mm Assault Rifle | 9mmar |
| 9mm Handgun | 9mmhandgun |
| Crossbow | crossbow |
| Crowbar | crowbar |
| Desert Eagle | eagle |
| Displacer | displacer |
| Egon Gun | egon |
| Gauss Gun | gauss |
| Grapple | grapple |
| Hand Granate | handgrenade |
| Hornet Gun | hornetgun |
| Knife | knife |
| Laser Tripmine | tripmine |
| M249 SAW | m249 |
| M40A Sniper Rifle | sniperrifle |
| Pipewrench | pipewrench |
| Rocket Thrower | rpg |
| Satchel Charge | satchel |
| Shock Rifle | shockrifle |
| Shotgun | shotgun |
| Snark | snark |
| Spore Launcher | sporelauncher |
Use one of the following ammo names with the “/give ammo_[ammo name]” code:
| Ammo type | Ammo name |
| .357 Magnum | 357 |
| 9mm Assault Rifle | 9mm |
| 9mm Handgun | 9mm |
| Crossbow | crossbow |
| Egon Gun | egonclip |
| Gauss Gun | gaussclip |
| M249 SAW | 556 |
| M40A Sniper Rifle | 762 |
| Rocket Thrower | rpgclip |
| Shotgun | buckshot |
| Spore Launcher | spore |
Use the following map names with the “/map [map name]” code:
Boot Camp
- ofbooto
- ofboot1
- ofboot2
- ofboot2
- ofboot3
- ofboot4
Regular game
- of0a0
- of1a1
- of1a2
- of1a3
- of1a4
- of1a4b
- of1a5
- of1a5b
- of2a1
- of2a1b
- of2a2
- of2a3
- of2a4
- of2a5
- of2a5b
- of3a1
- of3a1b
- of3a2
- of3a3
- of3a4
- of3a5
- of3a6
- of4a1
- of4a2
- of4a3
- of4a4
- of4a5
- of5a1
- of5a2
- of5a3
- of5a4
- of6a1
- of6a2
- of6a3
- of6a4
- of6a4b
- 0f6a5
- of7a0
