Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Multi Theft Auto is a game engine
A multi core friendly rigid body physics and collision detection lib
The ioquake3 community effort to continue supporting/developing id's
Kotlin extensions for the libGDX game framework
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
The HTML5 Creation Engine
LayaAir is an open-source 2D/3D engine
Multi-platform 2D and 3D game engine
3D and 2D game engine written in Rust
PyCAPGE - Python Classic Adventure Point and Click Game Engine
Cross-platform 3D scene editor based on three.js, golang and mongodb
A cross platform Lua based game engine
Data-oriented and data-driven game engine written in Rust
The Atomic Game Engine is a multi-platform 2D and 3D engine
Multi-platform game engine similar to old Megaman with a stage editor
A game engine written in the D programming language
TurboSphere is an easy to learn and powerful JS based game engine.
C++ Text Adventure Engine
Java OpenGL game engine demo.
Cross-platform 2D game engine
Free MMORPG Engine. Develop and host graphical browser-based games.