I worked on the Tristeon game engine and am proud of what I achieved with this engine, despite still being work in progress. I aspire to do tools engine programming in the future and that’s what I mainly focused on with this game engine.
I created:
-Custom serialization
-The complete engine editor (Using ImGUI)
-C++ introspection
-Game engine architecture (in collaboration with Leon Brands)

The engine is open-source and can be found on GitHub here: https://github.com/HyperionDH/Tristeon

A screenshot of the editor I made:

I have uploaded a showcase of the engine: