City of Heroes is a free-to-play massively multiplayer online role playing game (MMORPG) based in a fantasy comic book world called Paragon City. Players can choose to play as a Hero or as a Villain, these characters will have different types of super-powers. You can team up with other players or play solo, completing various missions and fighting criminals that belong to various kinds of gangs and organisations.
Mac OS X 10.6 or newer
Intel Core 2 Duo or higher
ATI X1600, Nvidia 7300 GT or ATI X3100 graphics
Broadband Internet connection
Free download at cityofheroes.com