Tetris 99

Tetris 99 is a 2019 battle royale puzzle video game developed by Arika and published by Nintendo for the Nintendo Switch, and is an online multiplayer adaptation of Tetris. Players move and drop puzzle pieces called tetrominoes onto a playing board, and must clear rows by filling them completely with pieces. Players lose if tetrominoes overflow off the top of the board or their next piece is not able to spawn because it overlaps an existing block on the playfield. Matches contain 99 players, who send additional rows to other players' boards by clearing a row on their own board; whoever is the last man standing without an overflowed board wins the match.

Tetris 99 was released as a free digital download for Nintendo Switch Online subscribers. Paid downloadable content and a physical edition have released subsequently. It received favorable reception from critics, has been nominated for several awards, and has been played by over 2 million players. Arika would later develop similar games to Tetris 99 for other popular video game series, such as Pac-Man 99, Super Mario Bros. 35 and F-Zero 99.