Doom 1

Map Complete

Type this code during play.
IDDT when at map mode
first time completes the map.
Second time shows all enemies and objects. Typing
it four times while holding the control key
during a death match will reveal the other
players.

Full Weapons And Ammo And All Keys

Type this code during play.
IDKFA

Full Weapons And Ammo

Type this code during play.
IDFA

Level Skip

Type this code during play.
IDCLEV + Level number (01 - 32)

Chainsaw

Type this code during play.
IDCHOPPERS

Get Item Temporarily

Type this code during play.
IDBEHOLD + one of the following letters:

R:
Radiation suit

I:
Invisibility

V:
Invincible

A:
Computer map

L:
Light amplification toggles

S:
Strength (you can kill most enemies with one punch)

Walk Through Walls

Type this code during play.
IDSPISPOPD

Displays Coordinates.

Type this code during play.
IDMYPOS

God Mode (invincible)

Type this code during play.
IDDQD

Kornel Lambert