The final updated edition, known as Sonic Adventure International, was released on Septemin North America, Octoin Japan and Europe, Octoin Belgium, the Netherlands, and Luxembourg, and Decemin Australia. One of its development titles was Sonic RPG, (although the final game was an adventure game not a standard RPG). Sonic Adventure ( ?, Sonikku Adobench?) is a video game created by Sonic Team and released on Decemin Japan by Sega for the Sega Dreamcast and is the first game in the Sonic Adventure series. Windows XP, 800 MHz Pentium III, 32 MB Geforce 2 or Radeon SDR, 1.2 GB hard drive space GD-ROM, CD-ROM, Nintendo GameCube Game Disc Single player, limited multiplayer (Tails can be controlled in Sonic's stages with controller 2)