Network cheat mode
Hold [Alt] and type "iddtiddtiddtiddt" in map mode.
Deathmatch cheat mode
Type "t" in the map to enter talk mode. Hold [Alt] and type "iddt" several times. This will reveal the entire map. Repeat the code to reveal all items. Repeating the code again will return the map to normal.
Cheat mode
Enter one of the following codes during game play to activate the corresponding cheat function.
| 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 | idspispopd |
| Chainsaw | idchoppers |
| Level select | idclev<level number 01-32> |
| Toggle full map; full map and objects; normal map | iddt |
| Display coordinates and heading | idmypos |
| Change music to indicated level | idmus<level number 01-32> |
| Kill all enemies in level | fhhall |
| Invisible to enemies until attack | fhshh |
Free modes
Note: This procedure involves changing a game file; create a backup copy of the file before proceeding. Enter the "/doom 95" folder and find the "doom1.wad" file. Make two copies of this file and rename one to "Doom2.wad" and the other to "doom3.wad". You now should have all episodes to the game.