Adventure C - Alien Spaceship (1982)(Artic Computing) ROM Download can be obtained free for Sinclair ZX81 on EmuGames.net only. Play Alien emulator game in English for the USA region. Adventure C Alien Spaceship is a Sinclair ZX81 ROM that you can download to your computer or play online within your browser. You can also download roms such as Hunter X Hunter Wonder Adventure and Digimon Adventure that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.