Fast and lightweight JavaScript game engine built on WebGL and glTF
A development environment focused on modding
Desktop/Android/HTML5/iOS Java game development framework
One framework for creating powerful cross-platform games
An iOS & tvOS Frontend for Multiple Emulators
Powerful, mature open-source cross-platform game engine for Python
A downloadable game for Windows, macOS, and Linux
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Free and open source real-time strategy game
LayaAir is an open-source 2D/3D engine
Doom-based AI research platform for reinforcement learning
Cross-Platform C++ 2D/3D game engine
3D Procedural Game Engine Using OpenGL
Java/JavaFX/Kotlin Game Library (Engine)
Gideros Release version
3D game engine/framework in C, with Luajit and Python bindings now
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Embeddable unity game engine view for Flutter
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL
Open and edit the archive files used in over 4200 games.
GemRB is a portable open-source implementation of the Infinity Engine
Game engine supporting many 3D/2D formats and graphic effects
A modern, cross-platform Quake game engine based on FitzQuake.