Enter one of the following codes during game play to activate the corresponding cheat function.

Effect Code

All keys, ammo, health rdall
All keys rdallkeys
Toggle clipping mode rdclip
Enable debug mode rddebug
All guns rdguns
Toggle invincibility rdelvis
All inventory items rdinventory
All items rditems
Toggle monsters rdmonster
Toggle all locks rdunlock
Change difficulty level rdskill