Tetris, created by Alexey Pajitnov in 1985, is a puzzle video game where players manipulate falling tetrominoes to create complete horizontal lines. Successfully completed lines disappear, awarding points and shifting remaining blocks downward. Over time, various Tetris versions have introduced new mechanics that have been widely adopted. It has appeared on PC, console and mobile platforms.
In June 1984, Alexey Pajitnov became inspired to convert pentomino tiling puzzles to the computer after he bought a pentomino puzzle set.
In November 1985, Tetris reportedly won second place in a computer game competition in Zelenodolsk.
Alexey Pajitnov completed the first version of Tetris around 1985. It lacked a scoring system and levels, but it captivated his peers.
Around 1985, Soviet clinical psychologist Vladimir Pokhilko first scientifically recognized the psychological and addictive effects of Tetris.
In 1985, Alexey Pajitnov, a Soviet software engineer, created Tetris, a puzzle video game involving moving tetrominoes to fill horizontal lines. Completed lines disappear, granting points, and blocks move down.
In June 1986, Robert Stein of Andromeda Software saw the commercial potential of Tetris during a visit to Hungary.
By 1986, nearly everyone with an IBM computer in Moscow and similar cities had played Tetris, marking its widespread popularity.
In 1987, Robert Stein signed agreements at the Consumer Electronics Show in Las Vegas, selling the European rights to Mirrorsoft and the American rights to Spectrum HoloByte.
On January 27, 1988, the Mirrorsoft version of Tetris was released in Europe for the IBM PC and other computer systems.
On January 29, 1988, the Spectrum HoloByte version of Tetris was released.
On February 24, 1988, Robert Stein reached an agreement with Elorg for a ten-year worldwide Tetris license.
In March 1988, Tetris won multiple awards at the Software Publishers Association's Excellence in Software Awards ceremony, including Best Entertainment Software.
In November 1988, Henk Rogers contacted Robert Stein to obtain the handheld rights to Tetris for the Game Boy.
In 1988, Macworld inducted Tetris into the Macworld Game Hall of Fame in the Best Strategy Game category.
In 1988, Mirrorsoft and Spectrum HoloByte commercially released Tetris to great success and sold licenses to other companies. Henk Rogers, among others, obtained licenses during this time.
In 1988, Spectrum HoloByte and Mirrorsoft started licensing Tetris to other companies, including Henk Rogers' Bullet-Proof Software and Atari Games.
In February 1989, Henk Rogers traveled to the Soviet Union and negotiated with Elorg for the rights to Tetris for the Game Boy.
In March 1989, Nintendo sent a cease and desist to Atari Games concerning their production of Tetris for the Nintendo Entertainment System (NES).
On June 14, 1989, the Game Boy version of Tetris was released in Japan.
On June 15, 1989, Nintendo and Atari Games began a legal battle in the courts of San Francisco over the rights to Tetris on the NES.
On June 21, 1989, Judge Fern M. Smith ruled in Nintendo's favor, granting them a preliminary injunction against Atari Games, halting their sale of Tetris for the NES.
On July 31, 1989, the Game Boy version of Tetris was released in the United States as a pack-in game.
In 1989, Henk Rogers negotiated with Elektronorgtechnica to license Tetris to Nintendo for the Game Boy and Nintendo Entertainment System (NES).
In 1989, The Spectrum HoloByte version of Tetris won three Software Publishers Association Excellence in Software Awards, including Best Entertainment Program and the Critic's Choice Award for consumers. Computer Gaming World also gave Tetris the 1989 Compute! Choice Award for Arcade Game.
In January 1990, Pajitnov was invited by Spectrum HoloByte to the Consumer Electronics Show, marking his first experience with American life. He then traveled to Las Vegas, San Francisco, New York City and Boston. He engaged in interviews with several hosts, including the directors of Nintendo of America, and spoke often of his travels to his colleagues upon returning to the Soviet Union.
In 1990, Nintendo's Dr. Mario and Sega's Columns were released, influenced by Tetris.
In 1990, Pajitnov released Welltris, where players adjust geometrical pieces descending down one of four walls of a three-dimensional well, and Hatris, which replaced descending tetrominoes with hats.
Entertainment Weekly named Tetris the eighth-greatest game available in 1991.
Following the 1991 collapse of the Soviet Union, Elorg became a private company under Belikov.
In 1991, Compile's Puyo Puyo was released, influenced by Tetris.
In 1991, Pajitnov and his family emigrated to Seattle, United States. Also in 1991, Faces...tris III was released, and won the "Best Action/Arcade Program" in the 1991 Excellence in Software Awards. Spectrum Holobyte's Super Tetris was also released in 1991.
In 1991, Tetris was ranked among the best computer games by PC Format.
In 1992, John Brzustowski at the University of British Columbia wrote a thesis concluding that Tetris is statistically doomed to end because a sufficiently large sequence of alternating S and Z tetrominoes forces the player to leave holes, leading to the end of the game.
In 1992, a Eurodance cover of the Russian folk song "Korobeiniki" (associated with Tetris) by Doctor Spin peaked at number six in the UK single charts.
Starting with the research of American psychologist Richard J. Haier in 1992, Tetris has been frequently used as a form of cognitive assessment and neuroimaging.
In 1993, Bullet-Proof Software released Tetris Battle Gaiden, and Nintendo released Tetris 2.
In 1994, Jeffrey Goldsmith coined the term "Tetris effect" in an article for Wired, comparing Tetris to an "electronic drug".
In 1994, Taito's Puzzle Bobble was released, influenced by Tetris.
At the end of 1995, the Academy of Sciences' rights to Tetris expired, reverting back to Pajitnov. Rogers was recruited to secure his rights.
In 1995, Tetris was ranked among the greatest video games of all time by Flux.
In 1996, Capcom's Super Puzzle Fighter II Turbo was released, influenced by Tetris.
In 1996, Tetris Plus was released, adding new game modes to the franchise.
In 1996, Tetris was ranked among the greatest video games of all time by Next Generation. Tetris was also ranked among the best computer games by Computer Gaming World in 1996.
In 1996, after the rights reverted to Alexey Pajitnov, he and Henk Rogers formed the Tetris Company to manage licensing of the game.
Since 1996, the Tetris Company maintains standard specifications for authorized versions of Tetris known as the Tetris Guidelines.
On August 11, 1997, Tetrisphere was released, a game where players rotate a three-dimensional sphere to place pieces on its surface. It was the first puzzle video game on the Nintendo 64 and garnered a cult following.
In 1997, Tetris was ranked among the greatest video games of all time by Electronic Gaming Monthly.
In 1998, multiple new Tetris titles were released, including Tetris 64, Tetris DX, The Next Tetris, and Tetris: The Grand Master. Tetris 64 allowed for four players and utilized the Nintendo 64's Bio Sensor. Tetris: The Grand Master was an arcade game targeted toward experienced players.
In 1999, Tetris was inducted into the "Hall of Fame" of Computer Gaming World.
In 1999, Tetris was ranked among the greatest video games of all time by Next Generation.
In 1999, The New Tetris introduced the hold feature, which allows players to hold tetrominoes to swap with later pieces.
In 2000, PopCap Games' Bejeweled was released, influenced by Tetris.
In 2000, Tetris was inducted into the "Hall of Fame" of GameSpy.
In 2000, Tetris was ranked among the greatest video games of all time by GameSpot.
In 2001, Tetris Worlds introduced the easy spin and the super rotation system, which defines how pieces rotate.
In 2001, Tetris was first ported to mobile devices by G-Mode.
In 2001, Tetris was ranked among the greatest video games of all time by Game Informer.
In 2001, a group of MIT researchers proved that for the "offline" version of Tetris (where the player knows the complete sequence of pieces), achieving certain objectives are NP-complete.
In 2001, the super rotation system and infinite spin were introduced in Tetris Worlds.
In 2002, Rogers formed Blue Lava Wireless to develop Tetris games for mobile platforms.
In 2003, Tetris was inducted into the "Hall of Fame" of GameSpot.
In April 2005, JAMDAT acquired Blue Lava Wireless, granting them a 15-year license of Tetris for mobile platforms.
In December 2005, Electronic Arts started its acquisition of JAMDAT, as Tetris consistently sold well on American carrier phones.
In 2005, Rogers acquired Elorg and renamed it Tetris Holding, solidifying control over the Tetris brand.
In January 2010, it was announced that mobile versions of Tetris since 2005 had reached 100 million paid downloads.
In February 2006, Electronic Arts completed its acquisition of JAMDAT, granting it the mobile license for Tetris.
On September 11, 2006, EA Mobile released their first Tetris game as a launch title for the iTunes store on iPod 5G.
In 2006, Tetris DS introduced a new scoring system to the game.
In 2006, Tetris was ranked among the best video game franchises by IGN.
Since the release of Tetris DS in 2006, the scoring system has remained mostly consistent with some exceptions.
In 2007, Tetris was inducted into the "Hall of Fame" of IGN and listed as part of the game canon by Henry Lowood of Stanford University, for preservation by the Library of Congress.
In 2007, Tetris was ranked among the greatest video games of all time by IGN and among the most influential games of all time by GamePro and IGN.
On July 10, 2008, EA released their version of Tetris on the Apple App Store on iOS.
In 2009, Tetris was ranked among the greatest video games of all time by Game Informer.
By January 2010, EA's mobile versions of Tetris reached 100 million paid downloads, making Tetris the most popular mobile game of all time.
In January 2010, EA Mobile and Blue Planet Software announced that mobile versions of Tetris since 2005 had reached 100 million paid downloads, making it most-downloaded mobile game at the time.
In October 2010, Guinness World Records recognized Tetris as the most ported video game in history, with over 200 variants on over 65 platforms.
In 2010, Tetris was ranked among the most influential games of all time by 1Up.com.
In 2010, the inaugural Classic Tetris World Championship (CTWC) was held, and Jonas Neubauer won, which helped popularize competitive gameplay of Tetris.
In 2011, the documentary Ecstasy of Order: The Tetris Masters, was released, featuring Jonas Neubauer's 2010 CTWC victory and helped popularize competitive gameplay of Tetris.
In November 2012, the Museum of Modern Art acquired Tetris, along with thirteen other video games, to display.
Around 2012, development began on Tetris Effect following a discussion between Henk Rogers and Tetsuya Mizuguchi about creating a Tetris game set to music using virtual reality.
In 2012, Tetris was ranked among the greatest video games of all time by Time.
In 2012, The Tetris Company enforced its copyright of Tetris against unauthorized clones in the Tetris Holding, LLC v. Xio Interactive, Inc. case, where a judge ruled that Mino violated Tetris's copyright based on look and feel.
In 2013, Tetris was ranked among the most influential games of all time by GamesRadar+.
In January 2014, Maya Rogers succeeded Henk Rogers as the CEO of Blue Planet Software, planning activities for Tetris's 30th anniversary.
On February 6, 2014, Sega released Puyo Puyo Tetris, a crossover between Tetris and Puyo Puyo, in Japan for multiple platforms. It sold over 60,000 copies within a week.
In April 2014, Rogers announced that Tetris totaled 425 million paid mobile downloads and 70 million physical copies.
In April 2014, Tetris earned a Guinness World Record for the "largest architectural video game display", hosted on the side of the 29-story Cira Center.
In an interview in June 2014, Maya Rogers spoke of her desire to expand Tetris's brand, such as through merchandising, and keeping the game fresh.
In December 2014, Ubisoft's Tetris Ultimate was released on the PlayStation 4 and Xbox One.
In 2014, Threshold Entertainment announced that it was developing a Tetris film adaptation, described as an epic sci-fi adventure and the first part of a trilogy.
In December 2015, a PC port of Tetris Ultimate was released, receiving mixed reviews.
As part of the 2015 inaugural class, The Strong National Museum of Play inducted Tetris into the World Video Game Hall of Fame.
In 2015, Tetris was ranked among the greatest video games of all time by GamesRadar+.
In 2016, Tetris was ranked among the greatest video games of all time by Time.
By 2017, the number of official Tetris variants had increased to 220.
In 2017, Puyo Puyo Tetris was released in the Western world, receiving positive reviews.
In 2017, Tetris was ranked among the greatest video games of all time by Polygon and ranked among the most influential games of all time by The Guardian.
On November 9, 2018, Tetris Effect was released on the PlayStation 4, receiving widespread critical acclaim.
On February 13, 2019, Tetris 99, a battle royale variant of Tetris, was released for Nintendo Switch Online subscribers. It received positive reviews and became Nintendo Switch Online's killer app.
On July 23, 2019, Tetris Effect was released on Windows, receiving widespread critical acclaim.
On April 21, 2020, EA's mobile license for Tetris expired, and the game became inoperable.
By November 2020, Puyo Puyo Tetris sold 1.4 million copies worldwide.
In 2021, Tetris was ranked among the greatest video games of all time by IGN and GamesRadar+.
In 2022, Tetris was ranked among the greatest video games of all time by USA Today.
On March 31, 2023, the film Tetris, a biographical drama about the Tetris legal battles, premiered on Apple TV+ and received positive reviews and a viewership of 88,000 people.
In 2023, Tetris was ranked among the greatest video games of all time by The Times and GQ.
In 2023, a film dramatizing the development of Tetris was released.
In January 2024, Willis Gibson received significant media coverage for "beating" NES Tetris by playing until it crashed during a 40-minute livestream.
In 2024, Tetris was ranked among the greatest video games of all time by USA Today and among the best video game franchises by Den of Geek.