World of Xeen is parts four and five combined of the venerable Might and Magic series which itself is one of the three big old franchises of computer roleplaying. If there was Clouds of Xeen and Darkside of Xeen installed on one computer, additional quests, monsters and puzzles became available. World of Xeen was released in 1993 on the PC and later converted for the Mac (1994). Bad people say that World of Xeen was originally intended to be part 4 of the Might and Magic series. As the game would become so huge, New World Computing decided to split it into two parts with the option to merge them.