Few game franchises have as groundbreaking and oddball of a past as the Wolfenstein series. What started as the very first stealth game, filled with single screen 2D missions, was "borrowed" by another developer and transformed into a new series that is credited with innovating first-person shooters, becoming the franchise that we now know today. Oddly, every entry into the franchise since Wolfenstein 3D is completely unofficial.
While the two series of games have completely different mechanics and style, the one thing they both have in common is the goal of killing Nazis.
1981 to 1984 - Series 1: The First Stealth Games
In the 70s the computer market began expanding into homes, starting with build-your-own kits for hobbyists, into pre-packaged systems. As home computer customers grew, so did the demand for software, and more importantly, games. So in 1978 Ed Zaron opened MUSE Software and hired its very first employee, programmer Silas Warner.
Warner, a former football tackle who stood at a towering 6 ft. 9 and weighed upwards of 300 pounds, was a brilliant programmer and within 3 years put MUSE on the map by creating the very first voice synthesizing technology for the Apple II computer, called "The Voice", then programmed and designed the very first stealth game, Castle Wolfenstein.