File: Wolfenstein.3d.zip ... File

The game's original source code was eventually released as open source , leading to numerous modern "source ports" and community modifications. Wolfenstein 3D : id Software, Inc. - Internet Archive

is the genre-defining first-person shooter (FPS) developed by id Software and released on May 5, 1992. Often credited with popularizing the FPS genre, it puts players in the boots of Allied spy William "B.J." Blazkowicz as he attempts to escape from the Nazi stronghold, Castle Wolfenstein. Core Gameplay & Features File: Wolfenstein.3D.zip ...

Players manage resources like health and ammo found throughout levels. A popular cheat (pressing L, I, and M simultaneously) instantly grants 100% health, 99 ammo, all weapons, and keys. The game's original source code was eventually released