Deal or No Deal

Deal or No Deal is the name of several closely related television game shows, the first of which (launching the format) was the Dutch Miljoenenjacht (Hunt/Chase for Millions).

The centerpiece of this format is the final round (a.k.a. the "case game" or "main game" ) which is played with up to 26 cases (or, in some versions, boxes), each containing randomly assigned sums of money. After the player for the case game is determined, this contender claims one case or a box at the start of the game, without its contents being revealed. The contestant then chooses the other cases or boxes, one at a time, to be immediately opened and removed from play. Throughout the game, the player is offered an amount of money or prizes to sell back their case and end the game, being asked the titular question, "Deal or No Deal?" If the contestant rejects every deal and eliminates all the other cases, the player keeps the money that was in their case. While almost all contestants win money, a winning outcome is dependent on whether the player should have taken one of the deals or should have held onto the original case or box until the very end.