Makiki's Microcrawl RPG
An attempt of mine to write an OSR system that I will like. As you can probably tell, it wasn't very successful - but at the very least it was educational.
The core issue here is that at that point I did not understand OSR gameplay yet, so I couldn't even properly identify what the hell would be my design goals. Add to this the fact that I didn't really have a wide enough overview on the TTRPG landscape, and the result had to be an ultimately forgettable system.
Who knows, maybe some day maybe I'll manage to create an OSR system of my dreams?