0 ", a role-playing game by Richard Garriott . Alien Carnage (1994), a.k.a Halloween Harry , a side-scrolling platform game published by Apogee Software . Allegiance (2000), a multiplayer space shooter / RTS by Microsoft Research . Anacreon: Reconstruction 4021 (1987), a DOS strategy game by George Moromisato. Antheads: It Came