Zone X ROM Download for Atari 800 on Emulator Games. Play Zone X game that is available in the United States of America (USA) version only on this website. Zone X is a Atari 800 emulator game that you can download to your computer or play online within your browser. You can also download free ROMs such as A-Zone, Pac Man (19xx)(Martin Day)[k-file] and Zybex 2 as shown below. Zone X works on all your devices in high quality.