As a third party developer, Blizzard has developed entertainment software for a variety of platforms including Sega, Nintendo and IBM PC in CD-ROM and floppy disk formats. Some of the companies best known titles include Rock 'n Roll Racing, The Lost Vikings, Blackthorne, The Death and Return of Superman and Justice League Task Force. The first multimedia computer title offered solely under the Blizzard label is Warcraft: Orcs & Humans, a real-time fantasy strategy game that was released nationwide in November 1994.