This app was mentioned in 7 comments, with an average of 1.29 upvotes
puzzle retreat has been a good one. super challenging and you get a whole load of games before it's like $2-5 for the entire collection. definitely worth it, I changed from phone to tablet (that I finished all the games long ago) and I still get stuck on them now.
Reminds me of a game I still play to this day, it's called Puzzle Retreat. I believe the great aesthetic of the game and the replayability make it a classic. I hope your game gets to be like that for me :)
https://play.google.com/store/apps/details?id=thevoxelagents.puzzleretreat&hl=en
Puzzle retreat is f'n addicting. https://play.google.com/store/apps/details?id=thevoxelagents.puzzleretreat