Doom II Cheat Codes

Doom II shipped with the same cheat codes as Doom. Every code, what it does and where the letters come from is on our Doom cheat codes page; this page is the Doom II layer on top of it: the one code that changed, the two-digit map numbers the warp and music codes use, the map and track names behind those numbers, and the one place where god mode does not help you.

What is different in Doom II

Doom II uses Doom’s core cheat system, with a few important differences:

IDCLIP instead of IDSPISPOPD

The DOS Doom II executable recognises idclip for walking through walls where Doom recognises idspispopd. The released Doom source code accepts both sequences, with the cheat handler explicitly noting that it was “accepting both,” so source ports based on that code commonly accept both as well. The distinction therefore matters mainly when comparing the original DOS executables: Doom uses idspispopd, while Doom II uses idclip.

Two-digit map numbers

Doom II has no episode number in its cheat syntax. idclev takes the two digits as the MAP number directly: idclev07 is MAP07 while idclev30 loads MAP30. The handler accepts map numbers through 34, so idclev33 and idclev34 are accepted inputs even though the standard Doom II IWAD contains only MAP01 through MAP32. Without a PWAD providing the requested map, MAP33 and MAP34 cause the original game to terminate with an error.

The same numbering convention applies to idmus: idmus07 selects the music assigned to MAP07, idmus30 selects the MAP30 track, and idmus33 through idmus35 select music that is not assigned to the 32 standard maps.

Two secret maps

Doom II’s two secret maps use the same two-digit warp format. idclev31 loads MAP31: Wolfenstein, while idclev32 loads MAP32: Grosse. In normal progression, MAP31 is reached through the secret exit in MAP15, and MAP32 through the secret exit in MAP31.

The rest is identical

IDDQD for god mode, IDKFA for every weapon, full ammo, 200% armor and all keys, IDFA for the same without keys, IDBEHOLD plus a letter for a powerup, IDCHOPPERS for the chainsaw, IDDT on the automap and IDMYPOS for your coordinates behave exactly as in Doom.

Warp and music codes with map names

Every Doom II map with its idclev and idmus code, the track that plays, and the par time from the engine. The names link to the map’s report card in the level database. Click a column header to sort.

Three music numbers reach past the maps:

MAP30: god mode does not save you

MAP30 is the important exception to the normal IDDQD rule. The Icon of Sin periodically launches spawn cubes toward designated spots in the arena. When a cube reaches its destination, the engine can spawn a monster there by telefragging anything already occupying the spot.

A telefrag deals 10,000 damage. IDDQD normally makes the player immune to damage below 1,000, so the 10,000-point telefrag is enough to kill a god-mode player. The MAP30 spawning code also specifically permits this monster telefrag against an invulnerable player.

This is different from ordinary attacks simply doing enough damage to overcome god mode: the spawn-cube mechanism deliberately bypasses the normal protection. If IDDQD is active on MAP30, keep away from the spawn locations when the Icon of Sin launches a cube.

The same god-mode system has other documented limits. Sector type 11 damage removes the invulnerability effect, and DeHackEd modifications can create attacks capable of exceeding the normal 1,000-damage immunity threshold. These are engine limitations rather than additional Doom II cheat codes.

IDCLEV side effects

idclev does more than change the map. When the level warp is executed, the player is reset to the standard starting state: 100 health, no armor, a pistol with 50 bullets, and no keys or power-ups. The fist is selected when the second digit of the map number is 1.

This matters when using idclev as a quick way to revisit a later map: the cheat does not preserve the inventory you had before entering the new level.

Cheat restrictions in multiplayer

The released source code disables the status-bar cheats during netgames, with IDCLEV as the exception. In other words, cheats such as IDDQD, IDKFA, IDFA, IDCLIP, and the other status-bar cheats do not operate normally during a network game, while the level-warp cheat remains available. IDDT has an additional restriction: it is disabled in deathmatch.

Nightmare! restrictions

The original DOS executables disable nearly all cheats on Nightmare! difficulty, with IDDT and IDCLEV remaining available. The released source code comments out this skill check for debugging purposes, so source ports decide independently whether to restore the original restriction. The Nightmare! rule therefore should not be treated as universal across every source port.

The rule also does not apply to the Doom Classic Unity port or to Doom + Doom II.

Final Doom

TNT: Evilution and The Plutonia Experiment run on the Doom II executable, so every code and every rule on this page applies to them unchanged, including the two-digit map numbers. Their own map names and tracks are in the level database, filterable per game.

Doom95 extras

Doom95 adds two cheats that are not present in the DOS executables or the released Doom source code:

• fhhall – Deals 10,000 damage to every monster on the map except Lost Souls (a Pain Elemental killed this way still releases its Lost Souls)
• fhshh – Toggles whether monsters can notice a quiet player.

The fh prefix comes from Fred Hommel, who programmed the Doom95 cheats. hall refers to Jason Hall, who requested the fhhall cheat. fhshh produces the messages “be vewy vewy quiet…” and “Achoo!” when toggled.