Thumb drift is a good and mindless game to play.
If you're looking for more non technology focused games, I'm gonna let you in on a little thing my friend and I play, I haven't heard of it before, and neither has anyone else who I've told about it. From my friend and I, it's been able to spread to around 20 people I know now, so this shows how addicting this game can be.
The license plate game.
Not states, oh no, this game will take years. In California, license plate formats are 1AAA000 (for most cars). So the game- collect all of the last three digits, IN ORDER. So start with 000. Then 001. Then 002, all the way, until you have 1000 pictures of plates, from 000-999, taking pictures of each in chronological order. It's all I think about on road trips (unless I'm driving) and sometimes my friends and I will literally go to parking lots looking for the plates we need. For reference, I've been playing for about 6 months, I'm on 033. even if your state has some format like 000AAA or some other format, there should be some sort of way to get three numbers in a row.
So if you need a picture of 002, but you see a 004, you can't take a picture. You need 003 first. You can imagine the torture and addiction that could come from this.
Once again, I haven't ever heard of this game, but chances are my friends and I aren't the ones who came up with it.