Alien Trilogy is a first-person shooter video game developed by Probe Entertainment and published by Acclaim Entertainment in 1996 for the PlayStation, Sega Saturn, and MS-DOS platforms. The game is based on the first three movies in the Alien film series. One of the first games developed by Probe following their acquisition by Acclaim, it debuted Acclaim's much-hyped motion capture technology. The game was well-received by critics, who praised its recreation of the films' atmosphere and its gameplay depth compared to other first-person shooters, and was a commercial success.

Alien is a science fiction horror and action media franchise centered on the original film series which depicts warrant officer Ellen Ripley and her battles with an extraterrestrial lifeform, commonly referred to as the Alien ("Xenomorph"), and the prequel series following the exploits of the David 8 android and the creators of the eponymous creatures referred to as the "Engineers".