Alien Invasion (1994)(Archimedes World) ROM Download for Acorn Archimedes (). Alien Invasion (1994)(Archimedes World) game is available to play online and download only on Late Games. Alien Invasion (1994)(Archimedes World) ROM for Acorn Archimedes download requires an emulator to play the game offline. This Game is English (USA) Version and is the highest quality available.