A Flutter based game engine
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
An easy to use 2D HTML5 game engine written in TypeScript
LayaAir is an open-source 2D/3D engine
Java/JavaFX/Kotlin Game Library (Engine)
A .NET ascii/ansi console engine written in C# for MonoGame and XNA
The game engine for everyone
Free, open source game engine online
The Tiny JavaScript Game Engine That Can!
A refreshingly simple data-driven game engine built in Rust
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL
Action RPG that's easy to mod
Self-hosted CMS platform based on the Laravel PHP Framework
Community effort to maintain and improve Jedi Academy (SP & MP)
ThinkPHP Framework
A multi core friendly rigid body physics and collision detection lib
Powerful, mature open-source cross-platform game engine for Python
Write your game with TypeScript in UE or Unity
Eva.js is a front-end game engine for creating interactive projects
Open-source engine for Heroes of Might and Magic III
A fresh & lightweight javascript game engine
Animation Compression Library
3D Procedural Game Engine Using OpenGL
Haskell game engine library for roguelike dungeon crawlers
lua dev plugin for unreal engine 4 or 5