Thanks, The Attic's a Dungeon looks really cool too! :)
Back when I was actively working on it, I put a lot of time into its development, but when I dusted it off over the weekend I was surprised how easy it was to put all those half-finished parts together to something playable for the jam!
It's based on MonoGame, but I use some Windows-specific APIs fot the level format – so all in all, porting to macOS and Linux should be possible, but challenging. (I personally don't have a Mac, but the game is open source, so anything can happen ;))