Browse free open source MMORPG games and projects for BSD below. Use the toggles on the left to filter open source MMORPG games by OS, license, language, programming language, and project status.
A companion for your LOTRO activities
OpenKore is an automation tool for Ragnarok Online
Arianne is an engine to develop multiplayer online games like Stendhal
Provides a full suite of clients and servers for virtual worlds.
An open-source Phantasy Star Online server for *nix
2D Open Source MMORPG
The original Xivio.com World Server Core
Modular Minecraft server plugin - commands, events, ...
Keep track of all your monsters during your encounters in a simple way
Game Communications Engine
JavaScript library to generate GW2 ToolTips based on official Wiki