I love the idea of playing a save crystal, but I have to agree it's also very easy to cheat and just write things down. I'm not sure how to really force a player to engage with the core concept of the mechanics except on the honor system. I really did feel compelled to cheat because having to scroll through and come up with my own memorization system on a board was very inefficient and slow compared to just writing it down. It's really cute, though, and I love your cover art!