Card Fusion 2048 is a card-based merge game modeled with 2048 rules. The player merges pairs of identical cards on a playfield to create new higher-numbered cards that equal the sum of the values of each card. They also earn coin and diamond winnings and achievement task bonuses.
As with solitaire card games, the player can only transfer single cards and partial sets. They can auto-transfer a bottom card that matches a bottom one by selecting it. They can also auto-transfer a partial set by selecting the top card in the series that matches the bottom card in another column.
Additionally, the player can transfer a card or build to any empty column. That said, when they perform this move, the game penalizes them by adding another row of cards onto the field. If the rows slide down to the bottom, the player receives coin and diamond winnings and must then start a new game.
Card Fusion 2048 offers boosters known as "boosts." The player purchases them with coins and ad views. They can use a rocket boost to remove a horizontal line of top cards, a back arrow to undo their last action, and a red trash can to remove a single card.
The player can change the background in the same shop that sells boosts. They merely need to unlock the scene with gameplay and then make a purchase with coins.