Goblin Miner: Idle Merger

This is a portrait-oriented idle merger game that can be played in short, interruptible sessions, making it suitable for quick breaks. However, progression is extremely slow and heavily monetized, with players often needing to pay or watch lengthy ads to advance, making it a pay-to-win experience. It's best suited for players who don't mind a significant grind or are looking for a mindless, one-handed experience they can pick up and put down easily.