The flexible game engine
Provides efficient allocation free async/await integration for Unity
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Open Source MMORPG Framework
Open-source engine for Heroes of Might and Magic III
A game framework written with osu! in mind.
Urho3D Game engine
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Simple GTK# Paint Program
Accuracy-focused XNA4 reimplementation for open platforms
A downloadable game for Windows, macOS, and Linux
Examples for 3DS using devkitARM, libctru, citro3d and citro2d
Gideros Release version
lua dev plugin for unreal engine 4 or 5
Experimental PlayStation Vita emulator
A fast and reliable entity component system (ECS) and much more
A multi core friendly rigid body physics and collision detection lib
An easy to use 2D HTML5 game engine written in TypeScript
A simple math library for games and computer graphics
A pure Go game engine
3D game engine/framework in C, with Luajit and Python bindings now
Powerful, mature open-source cross-platform game engine for Python
Homebrew development library for Nintendo 3DS/Horizon OS user mode
Mangos ZERO is a server for World of Warcraft
Svelto ECS C# Entity Component System