Doom: Fall of Mars is a fan-made RPG set in the Doom universe. The game was announced on August 2, 2008 and its first alpha version was released on August 26, 2008. This game, which is based on the original Diablo and has the affectionate nickname of "Doomablo", has you penetrating into the base of Phobos and has you fighting your way through 20 levels worth of monsters in order to reach the final level of Hell and the source of the demonic invasion.