Doom

The Super Nintendo version of Doom was published by Williams Entertainment on September 1, 1995, near the end of the system's life cycle. This is the first SNES title rated M for mature, and one of only three rated as such (the others being Mortal Kombat 3 and Ultimate Mortal Kombat 3, coincidentally also published by Williams Entertainment, Inc.). The cartridge features a Super FX 2 chip, and Doom was one of few SNES games to feature a colored cartridge; the NTSC release was available in a red casing. The game does not use the Doom engine, but features a custom engine, known as the Reality engine, programmed by Randy Linden.