Altered Beast ROM Download can be obtained free for Sega Master System on EmuGames.net only. Play emulator game in English for the USA region. Altered Beast is a Sega Master ROM that you can download to your computer or play online within your browser. You can also download roms such as Altered Beast Guardian Of The Realms and Altered Space that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.