Summary
Williams Entertainment released the Super Nintendo version of Doom on September 1, 1995, toward the end of the console's lifespan. This marked the first SNES game to receive an M for Mature rating, and it was one of only three titles on the system to earn that classification (the other two being Mortal Kombat 3 and Ultimate Mortal Kombat 3, both also published by Williams Entertainment, Inc.). The game’s cartridge includes a Super FX 2 chip, and Doom was among the rare SNES titles to have a colored cartridge, with the NTSC version coming in a red case. Unlike the original Doom, it does not utilize the Doom engine, instead running on a custom engine called the Reality engine, developed by Randy Linden.