Doom cheat codes

Doom has many cheat codes. To use a cheat code in PC versions of the game, one simply types the code while playing (this includes automap mode). After the last letter of a code has been entered, a message of acknowledgment will appear at the top of the screen. The status bar, player face, and in-game view may also change, depending on the effects of the code.

In the Doom Classic version of the game for, touch the screen with four fingers at any time to bring up an on-screen keyboard.

Cheat codes are disabled on the "Nightmare!" skill level, except for the and  cheats.

Cheat codes may be different on non- keyboards. For example, in France, may be, because of the  keyboard layout commonly used there. This is due to the fact that Doom's keyboard handling code reads raw scan codes from the hardware, which are not subject to any form of localization.

Doom95
The prefix FH in Doom95 cheat codes stands for the initials of Fred Hommel, the programmer who created the codes.


 * 1) HALL refers to Jason Hall, CEO of, who requested that particular cheat (hence the "BY REQUEST..." message that displays when the code is executed). The actual damage done to each monster is 10,000 hit points.
 * 2) Upon typing the  cheat the message "be vewy vewy quiet..." is displayed. This is a reference to 's catchphrase "Be vewy vewy quiet, I'm hunting wabbits!", in the beginning of a  or  animated short. The message "Achoo!" appears when the cheat is disabled (the joke being that you sneezed, and the monsters have heard you).