Do you play any games on your smartphone? I’m looking for single player ones to kill some time when waiting for the bus. Ideally they should work without an internet connection, so I can disable network access for that app and play without ads.
I’m currently playing Words of Wonder, but it gets repetitive after a while.
If you are on Android you can download OpenMW and play Morrwind on your phone, if you own it on pc. There is also a Civ V clone called Unciv.