Sonic Adventure ROM Download can be obtained free for Sega Dreamcast on EmuGames.net only. Play Sonic emulator game in English for the USA region. Sonic Adventure is a Dreamcast ROM that you can download to your computer or play online within your browser. You can also download roms such as Sonic Rivals and Sonic The Hedgehog 3 that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.