Alien usually means:
- Alien (creature) = An extraterrestrial, that is, a lifeform from another planet. This type of game character appears mostly in science fiction games, and sometimes in horror games.
Games named Alien:
- Alien (by Anonymous) = Alien (Anonymous; 1982; MS-DOS).
- Alien (by Alpha Aventuras) = Alien (Alpha Aventuras; 2008; Glulx; Spanish). Entry in La Comp Más Monstruosa.
- Note: This is a disambiguation page.