I've been playing this quite a bit the last weeks. I really like the smooth game mechanics (based on Slay). It's easy to get into yet there's a good amount of strategic depth. I think giving the AI opponents a bit of personality rather than make them play 'optimally' was a good choice because it still gives some challenge but also provides you with openings to exploit when it gets too 'greedy'. And it's an ad-free passion project of a single person.
As I've finished all the maps and the randomly generated ones aren't quite as good, do you know of similar games?