Open Source MMORPG Games

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. With hundreds of NPCs and different quests, features like the Travel log and achievement system keep track of progress. Thousands of creatures are ready to fight, above and below ground, and as players level up they can compare themselves on a detailed stats website. The engine Marauroa provides a simple way of creating games on a portable and robust server architecture. Marauroa manages the client server communication and provides an object orientated view of the world for game developers. It handles database access in a transparent way to store player accounts, character progress and the state of the world

Wiso is a Iso web framework written in HTML/Javascript/CSS based on the Prototype framework. Wiso can be part of a 2.5D (isometry) web game engine for web games.

Calculates the shortest path between a group of EVE-Online solar systems that contain assets.

A virtual world engine writen by C# Provide network,serialization,thread management,work flow,cluster management,RPC etc.It's designed for concurrency. For performance, it doesn't use lock to resolve conflicts, otherwise it use queues.

We are in the process of creating a open source persistent browser based web game (PBBG) framework which will have all the features to get you started and let you start developing your unique features without having to write all the basics. We have taken a modular approach, you can use only the modules you want. If you wanted just a forum you could enable only the core, user and forum modules. We are building our framework using Kohana which is an open source, object oriented (H)MVC web framework built using PHP5 by a team of volunteers that aims to be swift, secure, and small. We are using Kohana 3.3 You can view a demo at http://demo.modulargaming.com If you have any questions, bugs or feature requests feel free to post them on the issue tracker at GitHub. https://www.github.com/modulargaming/modulargaming Licensed under a BSD license. Modular Gaming can be used legally for any open source, commercial, or personal project.

Tortoise Multiplayer Online Game(MOG) Framework will be a flexible framework that can be molded to any 2D Gaming Needs.

Zen Worlds is an object oriented C++ virtual worlds / MMO game engine framework. This project includes Zen Engine game engine client, Zen Enterprise, an Enterprise Service Bus, and a C++ Application Server, and Zen Studio, a game development IDE.