Object-Oriented Graphics Rendering Engine (OGRE) is a scene-oriented, real-time, 3D rendering engine, as opposed to a game engine.
You know Age of Empires. You know its bugs.
FreeSO (“Free Simulator Online”) is a reimplementation of The Sims Online™’s game engine, using C# and Monogame.
31 Mar 2016)
Radix is a free and open source game engine in development.
8 Feb 2016)
Arcade videogame about a ball breaking bricks that are displayed.Genre: Arcade, Music
17 Aug 2015)
The Secret Chronicles of Dr. M.Genre: Platform, Action
FOnline is a client-server isometric game engine, intended for developing multiplayer and singleplayer games.
Opensource crossplatform Fallout 2™ engine writen in C++ and SDL.
Code and bugfixes for Instant Kingdom's Notrium, a topdown survival game
The Torque Game Engine, or TGE, is a computer game engine originally developed by Dynamix for the 2001 first-person shooter Tribes 2.
MonoGame is an open source implementation of the Microsoft XNA 4.
Solarus is a free and open-source Action-RPG game engine, licensed under GPL, and written in C++.