A modular Common Lisp game engine
Cross-platform 2D and 3D game engine with modular architecture
Kotlin extensions for the libGDX game framework
Voxel game-creation platform with easy modding and game creation
A Flutter based game engine
Multi-platform 2D and 3D game engine
A 2D rigid body physics engine for the web
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Zig game engine & graphics toolkit
Free game engine for development of desktop, mobile, and web games
3D Game engine with editor
Ct.js is a desktop game engine that makes learning programming fun
Stride (formerly Xenko), a free and open-source cross-platform C# game
A completely free, open-source, 2D game engine
The multiplayer game engine
Mini game engine for games104
Amazon Lumberyard is a free AAA game engine
An open source re-implementation of Diablo 2
2D Game Engine with Lua Scripting made on top of SFML
The Atomic Game Engine is a multi-platform 2D and 3D engine
Turbulenz is a modular 3D and 2D game framework
A 3D, fully concurrent game engine
A multiplatform game engine for interactive fiction experiences
Zap Engine