The PC classic Might and Magic 8: Day of the Destroyer is the newest addition to digital distributor Good Old Games. The first-person RPG borrows heavily from the engine used in Might and Magic 6, with a few tweaks. You can change your party throughout the game, and it brings back the card-based mini-game Acromage from Might and Magic 7: For Blood and Honor.
Both Might and Magic 8 and its predecessor are available for $5.99 each. Since the series is a continuing story, you might want to consider picking up Blood and Honor before taking on the sequel.