Wolfenstein 3D/Alpha

Alpha is a pre-release build of Wolfenstein 3D from April 1992. It includes only the first 10 levels from the first episode.

Differences

 * The "Can I play, Daddy?" difficulty is not present in this build.
 * Several maps are slightly different from the final version.
 * No Officers, Mutants or other enemies are present in this build.

Bugs

 * The game cannot be completed, because of the last boss is not functional.
 * Pushwall behavior is not fully implemented in this build.