Windows NT / Windows 2000 / Windows 98 SE / Windows 98 / Windows 95
First person shooters are a major genre of modern video games, and they all have key things in common; the player pierces the fourth wall into the game, the player can pick up items to help gameplay, and the player needs to move from point A to point B to accomplish his task. These styles of gameplay are the definition of FPS, but before 1992, no game employed these elements. Wolfenstein 3D changed this. It was the first game to offer 3D mechanics, the first game with a digital stereo soundtrack, and the first game available as shareware. This led it to be downloaded more than any other software for years.
This game is still available for download, and those gamers who remember the birth of their genre are able to port this game onto modern machines.