So I'm a C# developer and I have a prototype of a game engine (based on GameMaker 8) that uses the interpreted programming language i made by myself (that's a big story on its own) as the main scripting language you code your games with. 

This project is open source so you can see yourself what it is: https://github.com/ArcadeMakerSources/ArcadeMaker

And here's a little demo game i made with the engine (as shown in the above video):

So what do you think about this project? 🙂