NiL is a modular multi-purpose gaming engine including a multiplayer worm game a little like quake, except it's 2d and a little like worms except it's realtime.
Lixoo is a extensible, fast and small 2D point'n'click adventure game engine. It features the engine itself and an IDE that let you create full-featured games just by writing the essential code of the game.
Open-Source Massive Multiplayer Online Role-Playing Game engine. Server is semi-free, open for non-commercial use. Client is free software and the content is proprietary. Rehash from a 5-year-old project, active again since august 2007.
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Over is a space-based comic-like RTS game with some MMO features (persistency, commander profile, etc...) It also features customizable fleets and wings. Over is build on a completely custom engine which currently runs on linux and windows.
Have You ever played ROBBO or LASERMANIA on ATARI 65XE ? No? Have You ever played SOKOBAN or similar 2d logic game ? Yes? So.. the Toxic Project to create a 2d logic game engine and game on it. Main goal of the game is to think and think and think:)
ShadeGE is an example implementation of features present in a modern 3D game engine. Games can be written using scripts in Python or Lua, or through the C++ API directly.
Gojo is a 2D game engine that permits rapid game development, like FENIX, but uses Lua. The engine is written completely in C and uses SDL for graphics, sound, input, and networking. It comes with standard libraries for common game needs such as sprites.
Full service 3D game engine. Uses Ogre3D for the graphics and Aegia Physx for physics. Includes frame based memory allocation, component architecture and fully controllable through a Lua scripting API.
An attempt to fill in the void of affordable/open-source MMO engines written in C#. Newly updated using XNA, Lidgren and a custom physics engine. Checkout the ForgeRealm project which we have now merged with.
Dungeon crawling adventure engine written in lua. Written for Zen X-Fi2 and Love2D. Designed modularly for simple extending. Portraits by Antifarea (antifarea.deviantart.com),
Sprites by Redshrike (opengameart.org/users/redshrike).
Repository has been migrated to bitbucket.
Realism based first person shooter running on the XreaL engine, featuring a single player campaign and online multiplayer gametypes
Discontinued on this engine, feel free to use the code.
Valen3d will be a 3d-Space-Simulation Game, based uppon the Babylon5 Universe. There is currently a Prototype application life, with a "new" type of Event Handling System. Definitely an Eye-Catcher!
Shade is an Object-Oriented, Shader-based, Distributed Scene Graph. Designed using C++ (with optional Lua bindings), OpenGL, and MPI, Shade allows the creation of applications that work on a single machine and on a tiled display.
Self-Contained CGI (sccgi) is a C++ application that can be customized by developers looking to write high-performance web applications. It includes several database adapters and a template engine. Additionally, it can be extended with Lua.
Leadwerks Arena is an open source first-person/third-person arena game for online play between players. It is a community created tech demo for the Leadwerks Engine 2.1 and showcase of Phoenix.Framework.
Imagine, that browsing 3D worlds would be as easy as browsing web pages. Or that you could take character modeled and animated by you into your favorite 3D game, invite your friend to your personal 3D reality. Or that... ENOUGH!! Time to make it real!