The original version of “Sonic Adventure” is available for the Sega Dreamcast, though the game was also subsequently rereleased for Nintendo GameCube, Microsoft Windows and as a digital download on Xbox Live and the PlayStation Network. The game was first released for Dreamcast in 1998.
The original Dreamcast version of the game is no longer commercially available, though many used copies still exist. Sega ported the game to the GameCube in 2003 and also released a version for Windows the same year. In 2010, both Microsoft and Sony released digital versions of “Sonic Adventure” available for download through their online platforms. The game became available as a digital download for the Steam service in 2011.