Newest Humble Bundle has added Bastion to the roster. I command you to buy it.
https://www.humblebundle.com/ It also includes the soundtrack, which is awesome since the soundtrack for Bastion is amazing.
Other games added are Rocketbirds, AVNT, and Limbo. Rocketbirds and AVNT I have no clue what they are about. Limbo I've played. I didn't really enjoy it that much. Nothing really wrong with it, it just didn't click with me.
Now Bastion is simply incredible. Great aesthetic design backed by what is in my opinion the best videogame soundtrack in current years. The music is great in a way that's different from the greats of classic gaming, as three or four of the tracks have vocalizations. Now the game is an isometric action game with some RPG elements. The gameplay is solid, and while it isn't anything to write home about itself, it's still very well done. The main attraction is the story though, and how it is conveyed. There is a narrator (who has an amazing voice btw) who narrates your actions. Not every action, so it doesn't get old. But a fair number of actions. The weapons you go into battle with, the upgrades you get, whether you managed to get through a big fight without a scratch. It adds a ton of appeal to the game. The story itself is pretty good, with the ending close to bringing me to tears. Now emotionally, I'm a bit of a softie compared to some people, but it's still one of the few videogames that have managed that.