Deal or No Deal is a mobile adaptation of the TV game show with the same name. The original version of the game was based on the UK version of the show but it was later localized and adapted to the shows of other nations. Each version has its own graphics but has the same gameplay and features except for some minor variations.
The gameplay is the same as in the TV show. The player has to choose from 22 identical boxes and pick the one with the highest value. Each box has a value between 1p and £250,000. Thereafter the player starts opening the boxes to reveal the content of each. After every round, the player gets an offer from the banker and the player has to decide to take the deal or carry on playing. This will then go on until there are only two boxes left and the banker gives his final offer. If the player still rejects the offer, the banker may offer to swap the remaining box with the one in possession of the player.
There are two game modes: instant play and challenge mode. Instant play is a single game while involves playing through a full season twenty episodes. For each episode, the player has to qualify by earning enough money in the previous one. Additionally, it's necessary to answer at least one quiz question correctly to advance to the main game.