Wolfenstein 3D Cheats: Codes and Debug Keys for PC

Any time Hold M, L and I together while playing for health, ammo and weapons.
Debug mode Start with wolf3d -goobers, press Left Shift + Alt + Backspace in a level, then hold Tab and press a letter.

Filter cheats

Health, ammo and weapons

Cheat	Code	Effect
Full health and ammo	PC`M + L + I`	Gives full health, ammo, weapons and both keys, but resets your score to zero
Free items	PC`Tab + I`	Raises your health, ammo and score and gives you the next weapon (debug mode)

God mode

Cheat	Code	Effect
God mode	PC`Tab + G`	Turns invincibility on or off (debug mode)
Hurt yourself	PC`Tab + H`	Takes 16% of your health (debug mode)

Levels and movement

Cheat	Code	Effect
Enable debug keys	PC`Left Shift + Alt + Backspace`	Turns on the Tab debug keys after you start the game with wolf3d -goobers
Level warp	PC`Tab + W`	Warps to a level you choose; level 10 is the secret level (debug mode)
End level	PC`Tab + E`	Ends the level and shows the level-completed screen with your stats (debug mode)
No clipping	PC`Tab + N`	Lets you walk through walls; toggle it the same way (debug mode)
Slow motion	PC`Tab + S`	Turns slow motion on or off (debug mode)

Debug and testing

Cheat	Code	Effect
Position info	PC`Tab + F`	Shows your X and Y position and facing on the level (debug mode)
Level statistics	PC`Tab + C`	Shows the number of statics, doors and actors on the level (debug mode)
Memory usage	PC`Tab + M`	Displays memory usage (debug mode)
Graphics and sounds viewer	PC`Tab + T`	Opens a window that pages through the game's graphics and sounds; Esc closes it (debug mode)
Extra VBLs	PC`Tab + V`	Asks how many extra VBLs to add; high values only slow the game (debug mode)
Border color	PC`Tab + B`	Changes the screen border color (debug mode)
Quit game	PC`Tab + Q`	Exits the game (debug mode)

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How to enter cheats in Wolfenstein 3D

M + L + I cheat

Start or load a game.
Hold the M, L and I keys at the same time.
Your health, ammo and weapons fill up and your score drops to zero.

Debug mode (v1.1 and Steam)

Launch the game with the parameter wolf3d -goobers.
Start or load a game.
Press Left Shift + Alt + Backspace until a message says debugging keys are available.
Hold Tab and press a letter key, for example Tab + G for god mode.

Debug mode (v1.0)

Launch the game with the parameter wolf3d -next.
Start or load a game.
Hold Tab, Ctrl and Enter together, then use the Tab letter keys.

How to enable developer mode in Wolfenstein 3D

Start the game with the parameter wolf3d.exe -goobers.
On Steam, you can instead launch the Wolf3d + cheats.bat file in the steam/common/wolfenstein 3d folder.
Go into a level and press Left Shift + Alt + Backspace.
When the message says debugging keys are available, hold Tab and press a letter key.

Steam Community: Cheats for Wolfenstein 3D

Compatibility notes

Which releases these codes apply to, and where one behaves differently. Each note links to the source that documents it.

Steam release The Steam Community guide says you can skip typing the parameter: the Steam folder has a Wolf3d + cheats.bat file that starts the game with debug mode ready. Steam Community: Cheats for Wolfenstein 3D
GOG release Posters on the GOG forum say you add -goobers to the wolf3d.exe line at the bottom of the DOSBox .conf file. One of them reports that Tab + N (no clipping) does not work in the GOG version. GOG Forum: Wolf 3D and Spear of Destiny Debug Mode?
Version 1.0 vs 1.1 The Doom Help Service list says Tab + Q crashes the computer in v1.0 and only exits the game in v1.1. It also says the Tab + O level map works in v1.0 but not in v1.1. Doom Help Service: Wolfenstein 3D cheats list
Tab + E Sources disagree on how far Tab + E takes you. The Doom Help Service list says it jumps ahead two levels, while the Steam guide says it completes the current level. Doom Help Service: Wolfenstein 3D cheats list

FAQ

Is there a god mode cheat in Wolfenstein 3D?

Yes. Start the game with wolf3d -goobers, press Left Shift + Alt + Backspace in a level, then press Tab + G.

What does M + L + I do in Wolfenstein 3D?

Holding M, L and I together gives you full health, ammo, weapons and both keys, but your score resets to zero.

How do you enable debug mode in Wolfenstein 3D?

Launch the game with wolf3d -goobers, start a level and press Left Shift + Alt + Backspace. On version 1.0, use wolf3d -next and Tab + Ctrl + Enter.

How do you skip levels in Wolfenstein 3D?

In debug mode, press Tab + W to warp to any level, or Tab + E to end the current one.

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References: Doom Help Service: Wolfenstein 3D cheats list; Steam Community: Cheats for Wolfenstein 3D; GOG Forum: Wolf 3D and Spear of Destiny Debug Mode?.