Simple digital games stick around because they're easy to pick up anytime, like...

https://claytonsnewblog.tearosediner.net/how-do-daily-challenges-make-trivia-games-more-fun

Simple digital games stick around because they're easy to pick up anytime, like during a coffee break or commute. Think puzzles or card games that don’t demand a tutorial but still offer enough strategy to keep you hooked