Delicious Monsters: TD Tycoon

This is a loot-driven tower defense RPG with a semi-idle progression system, best suited for players who enjoy collecting and upgrading heroes. While sessions are short and interruptible, progression can become slow and heavily reliant on gacha mechanics or paying to overcome difficulty spikes, making it potentially pay-to-win. The game's cute art style and solo focus make it a relaxing, albeit challenging, experience for those who don't mind its monetization model.