In 2016 I wanted to learn Unity by re-implementing one of my C ++ projects. I started the game BigSeed:
It turned out to be quite easy to implement a voxel engine, import meshes/animations, and build multiplayer over the network. I wouldn't be using Unity's network stack today, I'm used to more control over the network than Unity gives me, won't expand here but maybe this will be the subject of another blog post.
I abandoned this project because I wanted to explore different ideas, but I still use Unity a lot and reuse code on every project. More importantly, the name of this game is now the name of my video game studio: BigSeed Studio