Unity3D Client And C# Server Framework
A simple and easy-to-use library to enjoy videogames programming
One framework for creating powerful cross-platform games
Gideros Release version
Desktop/Android/HTML5/iOS Java game development framework
Open game and rendering engine packed into a JavaScript framework
A game framework written with osu! in mind.
Open Source MMORPG Framework
Open source library for creative expression on the web, desktop, etc.
Open source library for N64 development
Self-hosted CMS platform based on the Laravel PHP Framework
OgreWin3D
Orx: Data-Driven Game Engine
Examples of procedural geometry for Unity3D C#
Lumina is a visual game creation environment for building 3D games.
A simple cross-platform game engine for creating old-school 2D games
lua dev plugin for unreal engine 4 or 5
TX Library is a tiny graphics library for Win32 written in C++.
Amateur 3D Game Engine
An isometric arcade-style game of skill, puzzles and exploration
Vivid3D is a C++ IDE/3D engine, with python scripting.
High-efficiency minimalist C++ wrapper for OpenGL 4.3
SDL based generic 2D game engine
Game/Scene Development System
Game engine supporting many 3D/2D formats and graphic effects