The game engine for everyone
Open source clone of the Age of Empires II engine
Powerful, mature open-source cross-platform game engine for Python
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL
Open-source engine for Heroes of Might and Magic III
The Tiny JavaScript Game Engine That Can!
A retro game engine for Python
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
New Godot bindings for Swift
An easy to use 2D HTML5 game engine written in TypeScript
Animation Compression Library
Embeddable unity game engine view for Flutter
A simple math library for games and computer graphics
Haskell game engine library for roguelike dungeon crawlers
A .NET ascii/ansi console engine written in C# for MonoGame and XNA
Rust library to create a Good Game Easily
A cross-platform, open-source, pure C game engine for mobile game
Eva.js is a front-end game engine for creating interactive projects
Opensource crossplatform Fallout 2 game engine writen in C++ and SDL
Orx: Portable Game Engine
Here we're trying to create the easiest open-source game engine.
Game framework with AI
Ze Text Adventure game Builder : Create as you play !
Tools and Z80 engine for creating adventure games.