Console Commands cheat codes..
Access the console, type in "npc_create npc_<name>" and replace the name with one of these:
| Code: | Result: |
| barnacle | Spawns a barnacle. |
| turret_ceiling | Spawns a Ceiling Turret. |
| citizen | Spawns a City 17 Citizen. |
| combinedropship | Spawns a Combine Dropship |
| helicopter | Spawns a Combine Helicopter |
| metropolice | Spawns a Combine Metrocop |
| cscanner | Spawns a Combine Scanner. |
| combine_s | Spawns a Combine Soldier. |
| crabsynth | Spawns a Crab Synth |
| crow | Spawns a Crow |
| headcrab_fast | Spawns a Fast Headcrab |
| fastzombie | Spawns a Fast Zombie. |
| turret_floor | Spawns a Floor Turret. |
| launcher | Spawns a Headcrab Launcher |
| headcrab | Spawns a Headcrab. |
| ichthyosaur | Spawns a Ichthyosaur. |
| manhack | Spawns a Manhack |
| mortarsynth | Spawns a Mortar Synth |
| pigeon | Spawns a Pigeon. |
| headcrab_poison | Spawns a Poison Headcrab |
| headcrab_black | Spawns a Poison Headcrab |
| poisonzombie | Spawns a Poison Zombie. |
| rollermine | Spawns a Rollermine. |
| seagull | Spawns a Seagull |
| stalker | Spawns a Stalker. |
| strider | Spawns a Strider. |
| vortigaunt | Spawns a Vortigaunt. |
| zombie_torso | Spawns a Zombie without legs. |
| zombie | Spawns a Zombie. |
| zombine | Spawns a Zombine (Combine Zombie) |
| alyx | Spawns Alyx. |
| antlionguard | Spawns an Antlion Guard. |
| antlion | Spawns an Antlion. |
| barney | Spawns Barney. |
| breen | Spawns Breen. |
| combinegunship | Spawns Combine Gunship |
| dog | Spawns Dog. |
| eli | Spawns Eli |
| monk | Spawns Father Gregori |
| gman | Spawns Gman |
| kleiner | Spawns Kleiner |
| mossman | Spawns Mossman |
Complete the indicated task to unlock the corresponding achievement.
Set the system date to October 31. After you are ambushed by Hunters and Combine at a big house, drive along the road. Near where the supply cache is found you will see an old truck. Go up to it. There will be lots of pumpkins lying on the ground.
Display the console window and type sv_cheats 1 to enable cheat mode. Then, type bind followed by a space and the key you wish to bind the code to. Finally, type another space followed by the code. For example, enter bind f12 notarget or bind p ai_disable.