ZED OS the clone of Windows XP
The smallest header-only GUI library(4 KLOC) for all platforms
Modern 3D engine and IDE written using C# and C++.
A 3D Snake and 2D snake
A tool to generate Tree sprites and voxels for the Doom game
A tool to generate Rock sprites, models and voxels for the Doom game
Data-oriented and data-driven game engine written in Rust
Speed Haste Model Viewer (I3D models)
A 2D game engine and level editor
Cross-platform 2D and 3D game engine
JPHP - an implementation of PHP on Java VM
A complete framework for Godot to create beautiful and complex AI
Unity 3D Project
A cross-platform 2D game engine
Clojure in Unity
Character animation system for games and simulations.
Source code of the chapters of the book 3D Game Development with LWJGL
A simple game to entertain all family
Blueshift is a cross-platform 3D game engine implemented in C++
Test project with a 2D platform game developing in Godot 3.1
Portable game engine with main focus on point-and-click adventures