This is really fun! Took me a moment to get the hang of the controls - But once I did it was great looking for +5 items and trying to figure out what kind of monster I could build to have a good shot at the middle.
The visuals and music are incredibly impressive - I love the character art, the tile art, the UI style - my favorite is probably the summoning progress bar; whether through animation or shader or anything else I’d love to know how you did that! Gameplay too - the inventory system is really robust; the tooltips, main menu options, spectate key, and pausing are nice touches, and the work you’ve done on control systems (and couch multiplayer!) is impressive.
I did find the game froze a couple times - the music continued, but no inputs functioned and the timer didn’t tick down for about 10s - and at one point I went over to check on my opponents and they knocked me out of the map entirely, and I couldn’t get back in! And I would argue your controls could be simplified to make adding an object to the ritual into the same key-press as picking something up - those two contexts shouldn’t conflict and there’s less finger movement that way. But other than that, a very smooth experience!
You’ve mentioned developing it further in other comments; best of luck with working on it after the jam! Let me know when you do so I can try it again :)