The type of casual games, where a player's main task is to solve a puzzle, e.g. match the identical pieces on the playing field or place the falling blocks in a line (Tetris). Puzzle games are aimed at training player's logical thinking and reaction if the game is played at a time limit. The most popular examples of the puzzle games are matching games (Match-3), Tetris, Sudoku games.

Matching games present the biggest percentage of casual games produced nowadays. The player's task is to match two, three, or even four identical pieces on the playing field. In order to indicate the identical pieces, the player usually has to swap them with the neighboring ones, shoot, or place them together by mere clicking. Once a player clicks the identical pieces, they are removed from the playing field. The final mission of the matching game is to clear the playing field.