Subterranean Animism
I've already played the **** out of this game. Good, but can't hold a candle to EoSD or IN.
And keep 'em coming! I've already played a couple of the suggestions, but most of these seem promising.
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http://www.youtube.com/watch?v=SBpfwpOPXNc&NR=1&feature=fvwp
I watch Planet Chasers Starlight Excellent all day, every day.