Are these Humble Indie Bundle 8 Games worth playing?

Just bought The Humble Indie Bundle 8 and only activated Proteus, Capsized, and Awesomenauts.

I already had Thomas Was Alone and Hotline Miami before the Bundle.

So I'm just wondering if the games that I didn't activate; Little Inferno, Dear Esther, Tiny and Big in Grandpa's Leftovers, English Country Tune, Intrusion 2, and Oil Rush, are worth playing.

Edit 0.5: I'm not much of a game collector. Just want to play "good games" :]

Edit 1: With the many good responses, Tiny and Big in Grandpa's Leftovers will be activated.

Edit 1.5: Hidden poorly? :/

Edit 2: Little Inferno is the next to be activated.