Mammut from Queen Games, designed by the relatively unheard of Kristen Admundsen Ostby. I hadn't read the official rules as Queen never posts their rulesets (you should start cuz you might be losing customers, guys....) but a fairly detailed description of play in another posting told me all I needed to know.
And Mammut is really rather simple, the gist of the game being this: you're a bunch of cavemen who just went hunting and you've got to split the loot (31 tiles of various different prizes). The first player to go takes as many tiles as they want. Seriously. Maybe they take all 31, who knows. The following players can take as much as they want from what is left of the loot or they can turn to a player who has already grabbed some tiles and say, "um, yeah, you're being hella greedy", and take all of their tiles from them, the caveat being they must return at least one tile to the centre. And this stealing and returning goes on and on until the last person without tiles decides that all the loot in the centre is worth enough to him that he'll settle with it.
So where does this put Mammut? Squarely in the mid-range of the pack as far as depth and strategy. It feels as immediate and playable as Ra due to the simplistic play and the varied scoring but the addition of secret tool cards and hidden tiles add a level of risk to the game that can make it feel at times more akin to Poker. As I said before, I knew as soon as I heard about the "sharing-the-loot" mechanic that I and my friends would enjoy playing this game. What I didn't know is that the addition of a tried-and-true scoring system and some other brilliant design decisions would make this one of the most enjoyable and original games I've played all year. Cap that with Queen's usual excellent levels of production andd clear ruleset and you've easily got one of the best titles of 2011.