I have a few games that I am playing at the moment, but a lot of them require at least some time commitment once you start a round. I’d like something that I can start now and maybe finish later. Something on the line of Solitaire or https://mergetin.com/ .
Simon Tatham’s Puzzles is an amazing collection of little puzzle games. There a ports for both Android and iOS available as well.
I’ve been playing them for about 15 years and counting. Not planning to stop anytime soon either.