I'm not sure if it was itch, or the game, but the first time I tried playing it crashed and I received a browser (firefox) notification that the page was slowing down the browser. The second time I played through there weren't any crashes, but I noticed a very high power usage spike in task manager from that browser window.
It was fun, I enjoyed the interpretation and execution of the themes in the card bonuses and how card placement impacted scoring the way tarot cards' placement can impact a reading.