- The original Wolfenstein 3D was banned in Germany because of the Natzi-related content. Here is a quote from 3DRealms Online Store on the subject:
Due to the game content, this game may not be ordered by residents of Germany.
- If you can find the secret level in Episode 3 of Wolfenstein 3D, you will get to experience Pacman in first-person.
- Many elements of the original Castle Wolfenstein and Beyond Castle Wolfenstein games (such as silent attacks, dragging dead bodies, changing uniforms, etc.) were completely programmed into Wolfenstein 3D, but the decision was made to cut them out in the interest of simplifying gameplay. If you don't think that these elements would have complicated the game, you should try playing Hitman: Codename-47.
- Wolfenstein 3D's title music is a Nazi-hym called "Horst Wessel Lied" (Horst Wessel's Song). It was the official Nazi party anthem.
- According to the official hint book, the record time for finishing Episode One is 5 minutes, 20 seconds.
- In Episodes 3 of the registered version of Wolfenstein 3D the music seems to include a Morse code beeping in the background. The message is:
TO: Big Bad Wolf
DE: Little Red Riding Hood
Imperitive: Complete mission within 24 hours. Out.
- There is a sprite in the game of a sign saying, "Call Apogee and say Aardwolf." Here is an explanation by Apogee's Joe Siegler from the Apogee FAQ:
"Call Apogee and say Aardwolf." It's a sign that to this day is something that I get asked about a lot. This is a sign that appears on a wall in a particularly nasty maze in Episode 2 Level 8 of Wolfenstein 3D. The sign was to be the goal in a contest Apogee was going to have, but almost immediately after the game's release, a large amount of cheat and mapping programs were released. With these programs running around, we felt that it would have been unfair to have the contest and award a prize. The sign was still left in the game, but in hindsight, probably should have been taken out. To this day, Apogee gets letters and phone calls and asking what Aardwolf is, frequently with the question, "Has anyone seen this yet?"
Also, in a somewhat related issue, letters were shown after the highest score in the score table in some revisions of the game. These letters were to be part of another contest that got scrapped before it got started, where we were going to have people call in with their scores and tell us the code; we'd then be able to verify their score. However, with the cheat programs out there this got scrapped too.
Basically, "Aardwolf" and the letters mean nothing now. Also note that if you found the Aardwolf sign in the game (without cheating), there's a VERY strong chance that you're stuck in there. The only way out may be to restart, or load a saved game from before you went into that maze.