Mobile games usually get a bad rep as they’re usually asset flips and/or MTX-ridden and/or ad-filled, etc., and I’m sure this is actually the case for most games on the app/play store. But are there any ones that are actually good, maybe just something to pass the time with?
Breakout 71. I could play for 30 seconds or 15 minutes. No ads, lots to unlock. Really like this one.
https://f-droid.org/packages/me.lecaro.breakout
Others have Mentioned Shattered Pixel Dungeon. Love that one too.