Superflight is a simple game about a complicated action - wingsuit flight. You score points for almost touching obstacles. If you touch anything, it's game over. The playground mountain levels are procedurally assembled. It's beautiful and endlessly entertaining. I made a video about it.
After playing Superflight for the purposes of making this video, I put it on my 65-inch TV at home and played it in its 4K, 60fps glory. I did not throw up on myself, though maybe I will if I try again tonight.
Superflight is rated "Overwhelmingly Positive" on Steam right now, which gives me faith that World Peace will definitely happen someday. And it's only $US2.69 ($4), which is cheaper than a bad cup of coffee (at least in New York City, anyway. Bad coffee is slightly more expensive here than it might be elsewhere.)