Use cheat codes in Doomsday for Doom, Hexen or Heretic

To use cheat codes in Doomsday for Doom, Hexen or Heretic, just press the tilde key (~) and type cheat, put a space and then use any one of the original cheat codes.

Example:

This gives me all the weapons in Hexen.

• Hexen Cheat Codes
• Heretic Cheat Codes
• Doom Cheat Codes