Diablo III than seeing a treasure goblin waltz up and snatch a valuable item away from you whilst you're dealing with a pack of monsters. It's endlessly satisfying to catch the little monster and take it down. But what if you could head back to the goblins' base and start taking stuff from them for a change? That's the idea behind the Vault, a new area being added to Diablo III with patch 2.1.
Whenever you take down a treasure goblin in 2.1, there's a chance that a portal to the Vault will spawn. Inside the Vault there's a ton of items pilfered by the treasure goblins, as you'd expect. There's also the Baroness Greed, who doesn't take kindly to having her space invaded and her pilfered goods re-pilfered by someone else. Still, it turns the game on its head; instead of being annoyed when a treasure goblin pinches your loot, now you'll have a chance to get something even better.