Daimonin

Daimonin is a free isometric MORPG inspired by classic hack'n'slash games like Diablo and Gauntlet.  Players can join together to explore and battle against the game's diverse array of monsters. Players must collect a variety of spells, skills, and equipment to become more powerful in combat.

The game features PvP, an intuitive group play system, advanced monster AI, and a vast gameworld to explore. Because the game is open-source, players can submit code patches or create maps, art, and music to be included in the game. Interested players are given access to a server dedicated to testing player-created content and their content may be added to the main server after review.