scene-oriented, flexible 3D engine (C++, Python, C#, Java)
The game engine for everyone
KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs
Powerful, mature open-source cross-platform game engine for Python
The flexible game engine
Open-source engine for Heroes of Might and Magic III
An easy to use 2D HTML5 game engine written in TypeScript
The Tiny JavaScript Game Engine That Can!
Animation Compression Library
Svelto ECS C# Entity Component System
Ct.js is a desktop game engine that makes learning programming fun
Eva.js is a front-end game engine for creating interactive projects
Entitas is a super fast Entity Component System (ECS) Framework
Open source reimplementation of GTA San Andreas game engine in Unity
Orx: Portable Game Engine
3D Scene Builder
Javascript library for making tile based games
Vivid is a modern C++ 3D engine using OpenGL4+
3D Game engine with editor
A fast, scalable, distributed game server engine/framework for C++
A project to create a blazingly fast Swift game engine
A 2d physics game engine for JavaFX
Flexible and easy-to-use 2d game engine
A 3D game engine in java.