A comprehensive path-finding library for grid based games
3D Architecture modelling and physics simulation system
A cross-platform, 3D interpreter to play LucasArts' Lua-based games
plugin-based RPG manager in C++ and Qt5
Open Game Bootstrap
A 3D game engine in java.
2d/3d Game Engine
An advanced flexible game engine for Java.
Wacky Wheels Remake
A free and open 3d action game.
Open-source 3D RTS game inspired by the Dungeon Keeper series
A simple turn-based artillery game and also a real-time strategy game.
Mahasona engine is an open source game engine.