Idle Inn Empire: Hotel Tycoon

This is a portrait-oriented idle tycoon game that can be played solo with short, interruptible sessions, making it suitable for quick check-ins. While progression can feel slow without watching ads or paying, it offers a mindless, high-replay value experience that is playable offline and one-handed. It's a good choice for players looking for a low-demand game to play in short bursts throughout the day.