A game engine powered by python and panda3d
IsoCity: City building simulation game
JavaScript-based game engine designed to empower developers
Game library for Pascal
A real-time 3D Engine written in Ada
Game engine supporting many 3D/2D formats and graphic effects
Arianne is an engine to develop multiplayer online games like Stendhal
Enigma is a puzzle game
Path creation asset for Unity game development
An ASI plugin for Grand Theft Auto V
Defeat all the beasties to claim victory!
Character animation system for games and simulations.
Source code of the chapters of the book 3D Game Development with LWJGL
scriptable game engine with built-in support for 2D graphics and sound
Asphyre is a cross-platform framework for Delphi and FreePascal.