Free, open source game engine online
Open source clone of the Age of Empires II engine
A retro game engine for Python
Powerful, mature open-source cross-platform game engine for Python
3D game engine/framework in C, with Luajit and Python bindings now
Solar2D Game Engine main repository (ex Corona SDK)
Ct.js is a desktop game engine that makes learning programming fun
An easy to use 2D HTML5 game engine written in TypeScript
A Flutter based game engine
Pycraft is an open-source, OpenGL based game made in Python
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
The flexible game engine
KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs
Svelto ECS C# Entity Component System
3D Game engine with editor
A pure Go game engine
New Godot bindings for Swift
A game framework written with osu! in mind.
The Tiny JavaScript Game Engine That Can!
dhewm 3 main repository
3D Procedural Game Engine Using OpenGL
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL
High performance UI layout library in C
Haskell game engine library for roguelike dungeon crawlers
GemRB is a portable open-source implementation of the Infinity Engine