Goblins aren't generally known for being frugal. You don't often hear about "the goblin who let that pile of gold just sit there" or "the goblin who figured those gems should probably go back to their rightful owner." No, they're more the, "takes what I cans gets!" sort. And it's just this stereotype that AEG is playing into with Greedy Greedy Goblins, which will be available soon.
In the game, players are goblins looking to mine all they can from a mountain. Gold and gems abound... but so does dynamite. And dynamite and goblins don't tend to go together very well. The game is played simultaneously. There's no individual player turns. It's first-come, first-served, so you have to be quick.
You can check out the full rulebook on the AEG site. The game is due out sometime this month.