The Tiny JavaScript Game Engine That Can!
Python MUD/MUX/MUSH/MU* development system
Voxel game engine in C++ with OpenGL
A high-performance, industry-standard 2D physics engine built on Box2D
The ioquake3 community effort to continue supporting/developing id's
A 2D rigid body physics engine for the web
KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs
Magic Another Game Engine
Stride (formerly Xenko), a free and open-source cross-platform C# game
Open game and rendering engine packed into a JavaScript framework
Free, cross-platform 2D game engine powered by Haxe and OpenFL
The Echo Engine is a simple game engine for text adventure games
3D game engine with lua scripting
Godot Minimal Theme
3D Procedural Game Engine Using OpenGL
The HTML5 Creation Engine
Cross-platform game engine in Rust
Embeddable unity game engine view for Flutter
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL
Ct.js is a desktop game engine that makes learning programming fun
A multi core friendly rigid body physics and collision detection lib
2D JavaScript Physics Engine
A .NET ascii/ansi console engine written in C# for MonoGame and XNA
Go bindings for raylib, a simple and easy-to-use library
Here we're trying to create the easiest open-source game engine.