Fast and lightweight JavaScript game engine built on WebGL and glTF
A development environment focused on modding
Blockbench - A low poly 3D model editor
.NET bindings for the Chromium embedded framework
Desktop/Android/HTML5/iOS Java game development framework
Patching, replacing and decorating .NET and Mono methods
A J2ME emulator for Android
An iOS & tvOS Frontend for Multiple Emulators
One framework for creating powerful cross-platform games
Open game and rendering engine packed into a JavaScript framework
3D and 2D game engine written in Rust
Dust3D is a cross-platform open-source 3D modeling software
Helix Toolkit is a collection of 3D components for .NET
Cross-Platform C++ 2D/3D game engine
LayaAir is an open-source 2D/3D engine
Free and open source real-time strategy game
Open source Cardboard SDK and samples
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL
The open-asset-importer-library repository
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Everything you need to build and deploy scalable realtime 3D apps
Doom-based AI research platform for reinforcement learning
Powerful, mature open-source cross-platform game engine for Python
Flax Engine, multi-platform 3D game engine
3D game engine/framework in C, with Luajit and Python bindings now