Dead Man's Chest

From BoardGameGeek:

Dead Man's Chest is a dice game of bidding and bluffing for three to eight pirates. The game includes rules, a treasure chest dice shaker, two special dice and 24 gems. The game is driven by a bid and challenge system. Players roll the dice in the chest and present the closed chest to the next player with a challenge based on their value. Will they call your bluff or choose to roll and raise the bid to the next player. But beware the challenge of DEAD MAN, as there is no higher bid! This is a variant of Mia.