ThinkPHP Framework
lua dev plugin for unreal engine 4 or 5
PyCAPGE - Python Classic Adventure Point and Click Game Engine
2D Game Engine
A cross platform Lua based game engine
Built to be ease of use, with no programming knowledge, Multi-platform
3D game engine for C and C++
A lightweight HTML5 Game Engine
Little game background framework in java.
DiaT is a Textadventure
A cross-platform OpenGL based lightweight scenegraph library
Basic real-time simulation engine in C++