Aliens: Thanatos Encounter

Aliens: Thanatos Encounter is a single-player shooter based on the Alien science-fiction horror film series. It takes place aboard Thanatos, an abandoned freighter that has been infested with Alien creatures. The game is played from a top-down perspective and features 12 levels, each available in three difficulty settings. In each level, the player must clear areas of Alien creatures and rescue survivors to progress. (wikipedia.org)