Thanks for playing and for the feedback!
I've been squashing a couple of crash bugs relating to objects trying to get grid cells that don't exist so it's probably something to do with that, hopefully that's fixed. The Settings menu was a last minute addition, I'll work on polishing it up and making fullscreen feel better. I've gotten a lot of feedback regarding things not being super clear so better descriptions and a proper tutorial is on the TODO list.
The deck only shuffles when you transition to the next level or when you play the Ancient Orb card :)