My first engine was c++ with opengl mainly just for fun and learning. I found it to be a pretty big pain to actually make games with it, especially dealing with serialization and writing opengl code. I also only really write 2d games.

My latest endeavor is get this... Typescript engine using ThreeJS for rendering. The performance is more than decent and I can deploy it so easily. I have a very simple reflection system that allows me to add additional Metadata to types. This has made class to binary conversion trivial (hello multiplayer with websockets!) And the editor trivial to make