Cross-platform 2D game engine focused on ultimate productivity
A modular Common Lisp game engine
Flax Engine, multi-platform 3D game engine
A simple cross-platform game engine for creating old-school 2D games
PyCAPGE - Python Classic Adventure Point and Click Game Engine
Modified source engine (2017) developed by valve and leaked in 2020
A high speed C++17 Vulkan game engine
XNA based game engine completely written in c#
A 2D java game engine
A lightweight HTML5 Game Engine
A cross platform 3d c++ game engine