A multi core friendly rigid body physics and collision detection lib
Accuracy-focused XNA4 reimplementation for open platforms
Cross-platform 2D and 3D game engine with modular architecture
Mangos ZERO is a server for World of Warcraft
An open source reimplementation of the Among Us Server
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL
A free and open-source Touhou Project fangame
Naev is a 2d action/rpg space game, action, rpg and simulation
Cross-platform, open source, and super fast MUD client with scripting
Widelands is a free, open source real-time strategy game
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Access GameLift resources and integrate GameLift into your Unity game
A pure Go game engine
3D game engine/framework in C, with Luajit and Python bindings now
Cross-Platform C++ 2D/3D game engine
Examples for 3DS using devkitARM, libctru, citro3d and citro2d
Cross-platform 2D game engine focused on ultimate productivity
Gideros Release version
lua dev plugin for unreal engine 4 or 5
Unity3D Client And C# Server Framework
Svelto ECS C# Entity Component System
DARKLINGS is an accessible F2P 2D fighting game with periodic updates
Open-source OpenGL/SDL2 reimplementation of Sid Meier's Alpha Centauri
High performance UI layout library in C
Pixel-art map visualizer for Minecraft