The engine is still under development and needs a lot of work. For example, world editor, camera, UI using IMGUI, etc.
I would love to implement ray, possibly path, tracing. I would also like to attempt implementing AMD's tetrahedral cage.
The game was build using C#, WinForms, and MSSQL (yeah, i know its lame, but honestly I just wanted to make the game, not spend most of the time learning Unity or whatever).
The project was built as a part of my coursework for A-Level Computer Science and was a great experience in making a game from scratch.