This game is all kinds of kick ass survival, cartography, feels-having awesomeness, I'm just waiting for the patch to hit because the game is a broken, buggy mess right now.
I'm all for more non-combat games, and this is definitely an interesting one. I sympathize for ya about wanting a demo, Great Rumbler, but Giant Bomb did a fat gameplay video of it a while back that sold me on the game
Though of course, nothing beats playing the game yourself.