Here's an interesting little game. Skylight is a first-person indie platformer by Moment Studios with a simple goal: ascend a flight of platforms to reach your home at the top. The arrangement of platforms is randomly generated each time, and landing on a platform causes it to play some kind of musical note, so that the soundtrack progressively generates itself as you go along. There's not a whole lot of complexity to the gameplay, besides landing your jumps and trying to build up a new high score, but the whole experience is pretty relaxing and enjoyable.
At least in theory. For as much potential as Skylight has to be a nice, relaxing game, I actually found it kind of frustrating. For whatever reason, I had problems consistently landing on platforms and controlling my momentum while using the first-person camera. It became much easier in third-person, but it was a little less immersing seeing my little robot character on screen. Even after a few dozen attempts I'd only managed to make it 30% of the way through the game, and it only gets harder the further you go, with platforms becoming more and more scarce and the sky becoming darker until you have to rely on the light of a headlamp to see.
I kind of wish, therefore, the game were a little easier to complete, with more complicated strategies for building high scores; as much as I enjoyed sailing through the air and generating random musical goodness as I went, it was incredibly frustrating for me to fail so badly (as the result of simple, easy mistakes) at what should be a relatively easy task. I feel like the purpose of the game is primarily to enjoy the aesthetics, rather than to master the nuanced challenge of platforming. Either way, whether you're interested in the aesthetics or the platforming, you can buy Skylight for $2.49 from the official site or on Desura, or as part of Kyttaro Games' current Bundle in a Box (provided you beat the current average price).