Tetris 99

Tetris 99 is a multiplayer puzzle game in which 99 players play against each other at the same time, with the aim to be the last player remaining. As with the traditional Tetris formula, players rotate and drop shaped bricks known as tetrominoes onto a board. Players can clear tetrominoes by completing rows across both sides, whereas players will lose if tetrominoes overflow off the top of the board. As with modern Tetris rules, players have the option to store a tetromino piece to swap out at any time.

By clearing multiple lines or performing continuous line clears in a row, players can send "garbage" to other players, which will appear on their board unless they can quickly clear lines in response. More garbage can be sent by completing combination moves in succession of making a "tetris" (matching 4 lines at once) or performing a "T-spin" (squeezing the T-shaped tetromino into a position it would otherwise not fall into by rapidly rotating it).

Tetris 99 was announced during a Nintendo Direct presentation on February 13, 2019, and made available later that day. It is available for free exclusively to players who have subscribed to the Nintendo Switch Online service. Nintendo released a physical version of the game in Japan on August 9, 2019, in North America on September 6, 2019, and in Europe on September 20, 2019. The physical edition includes the Big Block DLC content and a 12-month Nintendo Switch Online voucher.

Upon release, Tetris 99 received "generally favorable reviews" according to the review aggregator website Metacritic. Fellow review aggregator OpenCritic assessed that the game received strong approval, being recommended by 89% of critics. According to IGN Tetris 99 is a "wondrous pandemonium in a battle royale bottle" and "the massive player count really ups the intensity." The Daily Telegraph said the game is "fiercer than Fortnite" and "as exciting and cutthroat as any video game deathmatch".

During a financial results briefing, Nintendo president Shuntaro Furukawa reported that Tetris 99 had been played by over 2.8 million accounts as of April 2019. Furukawa also noted that the game has boosted "user engagement" with the Nintendo Switch.