Tetris 99 is the Nintendo Switch game that pits 99 players against one another in battle royale matches. It was developed by Arika and published by Nintendo as an online multiplayer adaptation of Tetris.
In a match, every player receives a separate Tetris board. Clearing lines can send garbage rows to opponents, while targeting systems let players attack specific rivals or choose targets automatically. A player is eliminated when blocks reach the top of the board, and the last surviving player wins.
Nintendo announced Tetris 99 during a Nintendo Direct on February 13, 2019, and made it available later that day. It was offered as a free digital download to Nintendo Switch Online subscribers, which helped distinguish it from conventional paid Tetris releases.
The number 99 is literal: the standard online format contains 99 human players, not merely a marketing reference to a large multiplayer lobby. Later downloadable content added offline modes, including battles against 98 computer-controlled opponents.