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Arianne is an engine to develop multiplayer online games like Stendhal
Arianne is a multiplayer online engine to develop turn based and real time games, providing a simple way of creating the game server rules and clients like our MORPG Stendhal. Our engine Marauroa uses Java and SQL for hosting hundreds of players on a solo host.
Stendhal is a fun friendly and free multiplayer online adventure game with a huge and rich world.
Wolfpack is an open source server implementing the protocol used by the massive multiplayer online game Ultima Online. It aims for full support of the Ultima Online protocol and tries to mimic the same gameplay as the original.
Arnacaw Online is an open source 2D MMORPG in development. A traditional MMORPG with many extensions, features planned include dynamic player-built worlds, a stock market, auctions, and a player-driven glyph-based spell system.
A codebase for the construction of 3d online virtual worlds. Includes everything you need to make your own multiplayer online roleplaying game. All game rules are contained in plugins which can be written in easy scripting languages such as Python.
A graphical isometric multiplayer virtual reality server in MUD-style. Rooms and server code can be changed online. At the moment, there is also an IRC link. Clients are available in Java and Python/C.