Players complete lines by moving differently shaped pieces (tetrominoes), which descend onto the playing field. The completed lines disappear and grant the player points, and the player can proceed to fill the vacated spaces. The game ends when the playing field is filled. The longer the player can delay this outcome, the higher their score will be. Tetris, puzzle game, strategy game, casual game, hypercasual, level up, block game, clear lines, score, challenge, skill, gameplay, tetrominoes, puzzle, strategy, casual, hypercasual