Frictional Games' HPL1 engine used to create the Penumbra series.
Now in use on over 150 projects, the Vision Engine gives you the freedom to create the type of game you want (MMOs, FPS, RPG, casual, serious, etc) on...
Engine for The Precursors and White Gold War in Paradise
Xeno3D is a full development toolkit with a focus on the deeper sort of RPG style of games. I.e it will have full built in support for quests, orders...
Antiryad Gx is an unified cross platform 3d game engine that stands out thanks to its vast platform support capability.
O.H.R.RPG.C.E., which stands for Official Hamster Republic Role Playing Game Construction Engine, is a free open-source utility that you can use to create...
Barok RPG engine is used to build a large and overcrowded living environments. It supports a lot of new technology and largely makes use of GPGPU and...
Quel Solaar is a real time 3D engine designed to take advantage of the Verse networking protocol. It is fully dynamic and requires no pre-processing of...
2D/3D Game engine designed for rapid development of XNA games of various genres and mechanics. Includes most basic features needed for a complete game...
A web-browser fantasy RPG engine written in PHP and using a MySQL database. Also uses Smarty & ADOdb extensions.
The Europa Engine is a grand strategy game engine, developed by Paradox Interactive. It is a versatile 2D engine that can handle a lot of simulate hundreds...
A royalty free, Indie and mobile device targeted, 3D game engine written in C and ObjC, with export support for Blender and an ever increasing array of...
A 2D fighting game engine, like to Mugen and Shugendo, written in XNA using the FlatRedBall engine.
This engine is created using the Silversprite framework, created by Bill Reiss at silversprite.codeplex.com. That means the engine is created in C# and...
SLUDGE is an adventure game engine for 2d games. It is script based, and thus very flexible.
The engine is based on OpenGL. Version 1.5 is better to access some advanced features, but 1.1 should be supported as well. The renderer uses some common...
The AMP2 Game Engine from 4D Rulers is designed for the creation of commercial video games, virtual walk through simulations and training simulation software...
Aztica 6DX is a COM-based 3D Engine for windows using DirectX. It features outdoor / indoor rendering, collision detection, portal-based visibility system...
SIO2 Free Open Source 3D Game Engine uses all the most advanced technologies available on portable devices and have been modified and optimized to get...
Nemesis Engine is a Engine that me, Samuel, am developing, it's content will be very moddable, and yes, i will release the full source code of my engine
The Valkyrie engine is a 2D tile based XNA engine.
The Phoenix Engine is under development by Wolfire Games, it's being used to power their upcoming game Overgrowth. The Phoenix Engine aims to be easily...
Qfusion is a 3D rendering engine based on sources from Quake II code. It is available for download and modification for free under the GNU General Public...
Fully-featured engine developed internally for Heresy War
The Mana World (TMW) is a serious effort to create an innovative free and open source MMORPG. TMW uses 2D graphics and aims to create a large and diverse...
Using procedural techniques, the game universe has been designed to be huge and realistic. There are billions of solar systems and planets, each unique...
Portablesrce is a Source-like engine recreated on Quake.
Yey-hay Platform engine - engine for platform games and action adventure games. It based on Multimedia Fusion and C++.
Lux is a first person puzzle game initially developed as a University project by a team of 11. It was an ambitious project undertaken over a six week...
A crudely preogrammed, but extremely reliable Flash CS3 platformer game engine. Helps you get started fast, and easily.