This definitely falls in the category: "If it sounds like it could not work, it might be awesome!"
The game just a is a blast to play. Awesome art and the creature design and it feels well balanced. Nice Job! Ship it!:D
I initially planned on a more involved way of placing the cards in real rooms and not just placing one card per room. That was sadly way out of scope and so I settled on that (messy) approach. After thinking about it, I agree that COOP may work wonderfull with the current implementation.
Anyhow, thank you so much for the honest feedback and of course playing!:)