Surprised at how long I've been hooked by this one. It is totally single player, so no pay-to-win, but there is pay to progress. No stamina mechanic, you can play all day of you want. You have stuff to do but cannot fall behind. There are gachas but the free model is super generous. It is basically an idle kingdom simulator. Cute characters, comedic stories, and if you like to plan and figure things out, or collect everything, or just are a completionist then this game is for you.