Phantasy Star Online (Japanese: ファンタシースターオンライン Hepburn: Fantashī sutā Onrain?) is an online role-playing game (RPG) developed by Sonic Team and published by Sega for the Dreamcast on December 21, 2000. Unlike previous turn-based games in the Phantasy Star series, Phantasy Star Online features real-time hack and slash combat. The game was a critical and commercial success, and was followed by three expanded versions: Phantasy Star Online ver. 2 (2001), Phantasy Star Online Episode I & II (2002), and Phantasy Star Online: Blue Burst (2004). A spin-off game featuring turn-based combat, Phantasy Star Online Episode III: C.A.R.D. Revolution, was released for the GameCube in 2003. A direct sequel, Phantasy Star Online 2, was released in Japan for Windows and PlayStation Vita in July 4, 2012, and for PlayStation 4 in April 20, 2016.