Elysium Source (2d MMORPG)

This code lets you make an entire ORPG (limited by the max of Winsock, which can be replaced by Sox, to increase online user capacity) or even an ORPG engine. It has all the features a decent MMORPG needs, guilds, melee, magic and ranged combat, basic AI, easy to use map-editor, etcetera.