For Android users who enjoy Slay the Spire, I recommend checking out Rogue Adventure. I just found it a week ago and I'm hooked. (In fact it's the only game I've been playing since I installed it.) It's free with ads, but the ads are 100% optional and you can pay $5 to get the same rewards.

I won't claim it's anywhere near as well-designed or as well-balanced as StS, but there are 12 classes and it looks like there's a similarly deep replay value.