I'm playing World of Goo, a physics game from 2008 that I bought in a Humble Bundle forever ago.
I tried it again on a lark and it holds up, I got sucked in. Classic physics game. One level takes me less than 15 minutes to complete, but it varies significantly.
There are interesting conflicting pressures in the game: you want to build with as little as possible, because the building material are your little dudes you're trying to get to safety. Gravity exists, and weight distribution matters: sometimes you must harness this fact to win.
Some levels are about building methodically, carefully choosing where to use the corpse of a sacrificed little dudes, because it is an immutable choice.
Other levels are about dynamics and timing, and you can get tantalizingly close to saving your entire team in these levels.
Its old, its cheap, it should run on most things~1~. Strong recommend.
1: not android: NetFlix did one of their closed market acquisitions making "free" games here