Simple digital games stick around because they’re easy to jump into anytime....

https://lima-wiki.win/index.php/Examples_of_Games_with_Clear_Goals_and_Fast_Restarts:_Perfect_for_Smartphone-Driven_Gaming_Habits

Simple digital games stick around because they’re easy to jump into anytime. With familiar rules—like puzzles, trivia, or card games—you don’t have to spend minutes figuring things out