From Macintosh Garden: Doom is the landmark first-person shooter by id Software 1st released as shareware for the PC in 1993. It is widely recognized for pioneering immersive 3D graphics, networked multiplayer gaming, and support for custom expansions (WADs).
When the game was finally released commercially as "The Ultimate Doom" for the Macintosh in 1995, it arrived with an additional fourth episode of 9 new levels, entitled Thy Flesh Consumed. By this time, Doom II had already made its debut on the Macintosh gaming platform.