Think I'm gonna call this my "game of the jam." I've spent more time playing it and chatting about it than any other entry. It stands on its own as a solid traditional roguelike, though the persistent nature of the dungeon means your individual experience won't vary until the current seed is completed. The cooperative nature of the game, then, lends itself toward messaging other players, chatting strategies, etc. to eke out the W.
That said, even as a traditional roguelike, I'm seeing things here I haven't seen elsewhere. For example, I appreciate the "grate" as a dungeon decoration mechanism and the impact it has on interactions with certain monsters, potions, weapons, etc. Since it stays so close to the genre, you don't have to spend a lot of time getting your bearings / figuring out the rules, but you can still be surprised by discovering new things. ("Oh, my sabre lets me lunge!")
The game feels fairly well balanced, even if certain monsters are OP and essentially run stoppers until you or other players leave enough notes to avoid them. (Cough, flaming orb, cough.) Looking forward to seeing how this one grows over time!