Malice: 23rd Century Ultraconversion for Quake is a commercial mod of Quake. While requiring a full, registered version of Quake, it acts like a stand-alone game, employing its own characters, weapons, environments, rules, etc. The player assumes the role of a mercenary named Damage, who works for the boss of an underground crime syndicate, Colonel Bossman. Damage's main mission is to assassinate the head of Takahiro Industries, Bossman's main rival. (mobygames)