Happy Hospital®: ASMR Blast

This is a portrait-oriented idle simulation game that can be played one-handed in short, interruptible sessions. While it offers a seemingly endless progression loop, it is heavily pay-to-win, with many levels becoming effectively impossible without spending money. It's best suited for players who enjoy a mindless, low-stakes experience and don't mind the aggressive monetization, as it's otherwise a solo, offline-playable, and highly replayable title.