Quake III Revolution (Q3R or Q3:R for short) is the "port" of Quake III Arena for the Sony PlayStation 2 game console. Unlike the original PC game and the Sega Dreamcast port, it does not support online playing, anyway it supports up to four human players by split-screen, and has got a different "single player" mode (which is not limited to deathmatches). The game has got two main sections: Arena and Campaign.