lua dev plugin for unreal engine 4 or 5
A simple cross-platform game engine for creating old-school 2D games
Game engine supporting many 3D/2D formats and graphic effects
Example code for creating a 2D platform game in Java.
.NET - VISUAL BASIC NVIDIA +ATI PHYSX SLIMDX DIRECTX 9 -ENGINE/WRAPPER
A generic 2D engine for any kind of game
Hungry Hero is an open source Flash game built on Starling Framework.