Now let’s get to the interesting stuff. So, you know how id Software’s Wolfenstein 3D is basically credited with being the original first-person shooter? Well, that visionary innovation also benefited from some questionable exploitation of an existing brand. Apparently, being a small company, Muse Software wasn't interested in hanging onto its copyrights, leaving the Wolfenstein name and intellectual property free for anyone to pilfer following Muse’s closure. Recognizing the opportunity, id Software made a game similar in theme to Castle Wolfenstein but, wisely, radically different in gameplay.
1992's Wolfenstein 3D wasn't the first game to employ a first-person perspective, but it's rightfully credited with popularizing the genre, preceding id's own Doom. It also introduced the more ridiculous narrative elements that the series is now known for, including its final boss, the infamous meched-out Hitler.