Stride (formerly Xenko), a free and open-source cross-platform C# game
Free game engine for development of desktop, mobile, and web games
A completely free, open-source, 2D game engine
Cross-platform 2D and 3D game engine with modular architecture
Open source library for creative expression on the web, desktop, etc.
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Zig game engine & graphics toolkit
PyCAPGE - Python Classic Adventure Point and Click Game Engine
The multiplayer game engine
Mini game engine for games104
QQ Group:538722494,KSFramework = KEngine + SLua(or xLua)
2D Game Engine with Lua Scripting made on top of SFML
Web powered cross-platform 3D, WebXR game engine
The Atomic Game Engine is a multi-platform 2D and 3D engine
A free ActionScript 3 library designed for developing 2D Flash games