Aliens: Thanatos Encounter is a shooter game developed by Wicked Witch Software and based on the Alien science-fiction horror film series. It was published by THQ and released for the Game Boy Color in 2001.
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. There are five Colonial Marines characters for the player to choose from and each has different skills and attributes. If the player's current marine is defeated by an Alien creature, the player must replay the level with another marine and has a time limit to rescue the previous one.
The player can use most of the weapons that were introduced in the films, including pulse rifles, flamethrowers, and grenade launchers. Some marines can use a motion tracker to detect enemies, while others can use two-handed weapons. The game offers three firing modes: the first one allows the player to shoot in the direction the marine moves, the second one allows the player to shoot enemies while moving backwards, and the third one allows the player to shoot in any direction from a pixed position.