Cheat code

Doom, Heretic, Hexen, and Strife contain various cheat codes, which are activated by typing the correct series of letters in-game. Some codes appear in virtually all versions of the game, while others are specific to a particular family of source ports. Certain source ports also support the activation of cheat codes via a console. The codes were added to the game by Dave Taylor.

Doom
What the code does Code Invincibility iddqd All weapons, keys, ammo, and 200% armor idkfa Reset ammunition idfa Berserker strength idbeholds Temporary invincibility idbeholdv Temporary invisibility idbeholdi Full automap idbeholda Anti-radiation suit idbeholdr Light amplification visor idbeholdl Walk through walls idclip Chainsaw idchoppers Level select idclev Toggle full map; full map and objects; normal map iddt Display coordinates and heading idmypos Change music to indicated level idmus