Sega Wiki

The Sega Corporation (株式会社セガ Kabushiki-gaisha Sega), styled in all-caps as SEGA, is a Japanese multinational video game software, hardware development and animation company, as well as a manufacturer of home computers and video game consoles. It is headquartered in Shinagāwa, Tokyo, Japan. The company had success with both arcades and home consoles, but on January 31, 2001, they officially left the consumer console business and began concentrating on software development for multiple third-party platforms.

Sega's European division, Sega Europe Ltd., is headquartered in the Brentford area of London. Sega's North American division, Sega of America Inc., is headquartered in San Francisco, California; having moved there from Redwood City, California in 1999. Sega Australia's headquarters are located in Sydney, New South Wales. The company also has offices in France, Germany and Italy. On November 1, 2000, Sega changed its company name from Sega Enterprises, Ltd to Sega Corporation. Sega has used its current name since 2015. In addition to its own development studios, SEGA also bought and still owns Megasoft (1991), Renovation Products (1993), Career Soft (2001, by Atlus), The Creative Assembly (2005), Sports Interactive (2005), Relic Entertainment (2013), Atlus (2013), Ignited Artists (2014), Play Heart (2015), Amplitude Studios (2016), Technosoft (2016) and Two Point Studios (2019). Visual Concepts, Kush Games, Nex Entertainment, Demiurge and Ignited Artists were respectively sold to Take-Two Interactive in 2005, sold along with Visual Concepts, spun off in 2005, spun off in 2020, and sold to GCL in 2020. SEGA also acquired Secret Level in 2006, but closed it down in 2010; Three Rings Design, which was acquired in 2011, was shuttered in 2016.

SEGA develops, publishes, sells and owns a variety of highly acclaimed video game franchises, including but not limited to Sonic the Hedgehog, Yakuza, Total War, Megami Tensei, Persona, Phantasy Star, Super Monkey Ball and Football Manager, along with others. With an annual revenue of 3.42 billion US dollars, SEGA remains one of the largest gaming companies in the world. After retreating to the background for a while, SEGA started a large international expansion beginning in 2013, characterised by a large acquisition spree and accelerating profits, even after the decline of its arcades (Which SEGA divested in 2020). The company is also known for its extensive involvement with its fans, its tolerance and support of fan creations, and its frequent charitable work and philanthropy.


Origins and entry into the video game market (1940 – 1989)

Rosen Enterprises and Service Games Japan merged in 1965 to form Sega Enterprises. Service Games Japan was itself a continuation of Standard Games, a slot machine developer founded in Hawaii in 1940. Within a year, the new company released a submarine-simulator game called Periscope that became a smash-hit worldwide.

Sega was started by a partnership of Standard Games (which was incorporated in 1940 as Standard Games but later renamed to Service Games) in Honolulu, Hawaii by Martin Bromely, Irving Bromberg and James Humpert to provide coin-operated amusements for American servicemen on military bases. Bromely suggested that the company move to Tokyo, Japan in 1951; in May of 1952, Service Games of Japan was registered.

In 1954, another American businessman, David Rosen, fell in love with Tokyo and established his own company, Rosen Enterprises, Inc., in Japan to export art. When the company imported coin-operated instant photo booths, it stumbled on a surprise hit: The booths were very popular in Japan. Business was booming, and Rosen Enterprises expanded by importing coin-operated electro-mechanical games.

In 1969, Gulf + Western purchased Sega, and Rosen was allowed to remain CEO of the Sega division. Under Rosen's leadership, Sega continued to grow and prosper.

In the video game arcades, Sega was known for games such as Zaxxon and Outrun.

Sega's revenues would hit $214 million by 1982 and in 1983, Sega would release its first video game console, the SG-1000, the first 3D arcade video game, SubRoc-3D, which used a special periscope viewer to deliver individual images to each eye, and the first action-based laserdisc arcade game, Astron Belt.

In the same year, Sega was hit hard by the American video game crash. Hemorrhaging money, Gulf + Western sold the U.S. assets of Sega to famous pinball manufacturer Bally Manufacturing Corporation. The Japanese assets of Sega were purchased for $38 million by a group of investors led by Rosen and Hayao Nakayama, a Japanese businessman who owned a distribution company that had been acquired by Rosen in 1979. Nakayama became the new CEO of Sega, and Rosen became head of its subsidiary in the United States.

In 1984, the multibillion dollar Japanese conglomerate CSK bought Sega, renamed it to Sega Enterprises Ltd., headquartered it in Japan, and two years later, shares of its stock were being traded on the Tokyo Stock Exchange. David Rosen's friend, Isao Okawa, the chairman of CSK, became chairman of Sega.

In 1986, Sega of America was established to take advantage of the resurgent video game market in the United States.

Sega would also release the Sega Master System and the first Alex Kidd game, who would be Sega's mascot until 1991 when Sonic the Hedgehog took over. While the Master System was technically superior to the NES it failed to capture market share in North America due to highly aggressive strategies by Nintendo and ineffective marketing by Tonka. However, it did dominate the European and Brazilian markets until Sega discontinued the system in Europe in 1996, and in Brazil in 2000. Tectoy who was responsible for the Brazillian marketing, continue to sell Master System plug and play consoles to this day, officially making the Master System the longest selling console of all time.

Sega as a Major Console Manufacturer (1990 - 2001)

Sega Mega Drive/Genesis

Main article: Mega Drive

With the introduction of the Mega Drive (Known as the Sega Genesis in North America), and to carry the momentum to the second generation of video games, Sega of America, led by Tom Kalinske, launched an anti-Nintendo campaign with slogans such as "Genesis does what Nintendon't." When Nintendo launched its Super Nintendo Entertainment System, in 1991, Sega changed its slogan to "Welcome to the next level".

In 1991, in order to rival Nintendo to the punch of the upcoming Super Nintendo, Sega re-branded itself with a new game and mascot, Sonic the Hedgehog. With his hip attitude and style, he was marketed to seem "cooler" than Mario, Nintendo's mascot. This shift led to a wider success for the Genesis and would eventually propel Sega to 65% of the market in North America for a brief time. Simultaneously, after much previous delay, Sega released the moderately successful Mega-CD as an add-on feature, allowing for extra storage in games due to their CD-ROM format, giving developers the ability to make longer, more sophisticated games, the most popular of which was Sega’s own Sonic CD

By 1994, Sega had released the Sega 32X in an attempt to upgrade the Mega Drive to the standards of more advanced systems. It sold well initially, but had problems with lack of software and hype about the upcoming Sega Saturn and Sony's PlayStation. Within a year, it was in the bargain bins of many stores.

Sega v. Accolade

In 1992, Sega lost the Sega v. Accolade case, which involved independently produced software for the Sega Mega Drive console that copied a small amount of Sega's code. The verdict set a precedent that copyrights do not extend to non-expressive content in software that is required by another system to be present in order for that system to run the software. The case in question stems from the nature of the console video game market. Hardware companies often sell their systems at or below cost, and rely on other revenue streams such as in this case, game licensing. Sega was attempting to "lock out" game companies from making Mega Drive games unless they paid Sega a fee (something its competition frequently did in the past).

Their strategy was to make the hardware reject any cartridge that did not include a Sega trademark. If an unlicensed company included this trademark in their game, Sega could sue the company for trademark infringement. Though Sega lost this lawsuit, all later Sega systems seemed to incorporate a similar hardware requirement. Also worthy of note was the release of the successful Virtua Racing in the arcades and on the Genesis, among the first 3D games on the market, as well as the release of Sonic the Hedgehog 2, the most successful game Sega ever made, selling six million copies as of June 2006.

Arcade successes

The 1993 release of Virtua Fighter was widely hailed as one of the greatest achievements in Sega's history. By utilizing their newest arcade cabinet, the Sega Model 1, they managed to create graphics and gameplay that were, at the time, revolutionary, becoming a massive critical success. The game was a smash hit with consumers, spawning four direct sequels, several successful spinoffs, as well as the 3D fighting genre. It is one of the video games on display at the Smithsonian Museum of American History in Washington D.C.

Sega followed that success in 1994 with Daytona USA, an equally impressive game. The success of Daytona USA would be unparalleled in the history of the arcades, becoming the most profitable game ever released in that medium. Other notable hits of the year would be Yu Suzuki's Virtua Cop and Star Wars Arcade.

Despite their massive advances in the arcades, Sega’s share of the home market plummeted by 1994 to 35% after Nintendo released key franchise titles for the Super Nintendo Entertainment System such as Donkey Kong Country, Star Fox, and Super Metroid, along with an internal shift in focus away from the Mega Drive to Sega's upcoming Saturn and the release of the Sega 32X, which never achieved commercial success in light of Sega's attention on the forthcoming Saturn. Also in 1994, Sega launched the Sega Channel, a subscription gaming service delivered by local cable companies affiliated with Time-Warner Cable or TCI through which subscribers received a special cartridge adapter that connected to the cable connection. At its peak, the Sega Channel had approximately 250,000 subscribers.

Sega Saturn

Main article: Sega Saturn

In 1995, Sega released the Sega Saturn (with Virtua Fighter) in the American market, which utilized a 32 bit processor and preceded both the PlayStation and the Nintendo 64. However, poor sales in the West led to the console being abandoned within three years. Ironically, it was Sega's biggest success in its home country of Japan, where it managed to outsell the PlayStation well into 1996, and defeated the Nintendo 64. The Saturn library was built heavily on arcade ports, such as two of the Saturn's top selling games; Virtua Fighter 2 and Sega Rally, and platformers, such as Sonic Team's Nights into Dreams... and Burning Rangers. Other notable titles include several titles exclusive to the Japanese market, like Radiant Silvergun and Sakura Taisen, involving fighting games like Last Bronx, rail shooters, such as Panzer Dragoon and The House of the Dead and a few well regarded RPGs: Panzer Dragoon Saga, Grandia, and Shining Force 3.

In 1997, Sega entered into a short-lived merger with Bandai. However it was later called off, citing "cultural differences" between the two companies. Around the same time, Sega announced that the Saturn was not Sega’s future and quickly began moving high profile titles (most notoriously Virtua Fighter 3) over to their upcoming next generation game console, the Dreamcast. Entertainment fun center GameWorks was founded in 1997 as well as the now defunct Sega World theme parks.


Main article: Dreamcast

In 1998, Sega launched the Dreamcast game console. The Dreamcast was not only competitive price wise, partly due to the use of off-the-shelf components, but it also featured technology that allowed for more technically impressive games than its direct competitors, the Nintendo 64 and the PlayStation. An analog 56k modem was also included, allowing gamers to play multi-player games online on a home console for the first time, featuring titles such as the action-puzzle title Chu Chu Rocket, Phantasy Star Online (The first console-based MMORPG) and the innovative Alien Front Online, the first console game with online voice chat.

The Dreamcast had a fairly poor launch in Japan. Launching with a small library of generally unpopular software and in the shadow of the upcoming PS2, the system would not gain great success, despite several successful games in the region. The Western launch a year later was accompanied by a large amount of both first-party and third-party software and an aggressive marketing campaign. It was extremely successful and earned the distinction of "most successful hardware launch in history," selling a then-unprecedented 500,000 consoles in its first week in North America.[2] Sega was able to hold onto this momentum in the US almost until the launch of Sony's PlayStation 2. The Dreamcast is home to several innovative and critically acclaimed games of the time, including one of the first cel-shaded titles, Jet Set Radio; Seaman, a game involving communication with a fish-type creature via microphone; Samba de Amigo, a rhythm game involving the use of maracas; and Shenmue, an adventure game of vast scope with freeform gameplay and a striking attempt at creating a detailed in-game city. Despite receiving critical acclaim, these titles failed to garner much public attention in the face of the upcoming PlayStation 2 launch.

Faced with debt and competition from Sony, Nintendo, and Microsoft, Sega officially discontinued the Dreamcast hardware in 2002. The final game Sega released for it was NHL 2K2.

Shift to a software vendor (2002 - 2005)

2002 would see a major shift in focus for Sega as it moved out of the console manufacturing business.

The company has since evolved primarily into a platform-agnostic software company, known as a "third-party publisher", that creates games that will launch on a variety of game consoles produced by other companies, many of them former rivals. The first of these was a port of Chu Chu Rocket to Nintendo's Game Boy Advance.

Arcade units are still being produced, first under the Sega NAOMI name, and then with subsequent releases of the Sega NAOMI 2, Sega HIKARU, Sega Chihiro, Triforce (in collaboration with Nintendo and Namco) and the Sega Lindbergh. Sega is the major force in the arcade industry today, controlling a substantial portion of the market.

Despite several early hits as a third party vendor, including Virtua Fighter 4, Sonic Adventure 2 Battle and the new Super Monkey Ball series, Sega fell on hard times, and after the death of CSK founder Isao Okawa in 2001, who spent over US$40 million to help Sega, CSK put Sega on the auction block. The first potential buyer was Japan's Sammy who discussed a merger, but plans fell through. Discussions also took place with Namco, Bandai, Electronic Arts and Microsoft.

In August 2003, Sammy bought the outstanding 22% of shares that CSK had, and Sammy chairman Hajime Satomi became CEO of Sega. With the Sammy chairman at the helm of Sega, it has been stated that Sega's activity will focus on its profit-making arcade business rather than its loss-making home software development. In late December, Sega launched the highly successful Sonic Heroes, the first Sonic game to be on both the Xbox and the PlayStation 2. It is one of the most successful games in Sega's portfolio, selling slightly over 5 million units in its lifetime.

During the middle of 2004, Sammy bought a controlling share in Sega Corporation at a cost of $1.1 billion, creating the new company Sega Sammy Holdings, one of the biggest game manufacturing companies in the world. With the merger, Sega reabsorbed its second party studios and began to reorganize them. Many Sega employees, most notably Tetsuya Mizuguchi, father of Sega Rally and Space Channel 5, walked out in protest.

On January 25, 2005, Sega sold Visual Concepts, a studio Sega dubbed a "1.5" developer, to Take-Two Interactive for $24 million. Sega used the parlance "1.5" as a mid-point of sorts between first-party and second-party developer status: that is, a wholly owned studio that would otherwise be known as a first-party developer, but was outside of internal development teams. Visual Concepts was known for many Sega Sports games including the ESPN NFL Football series, formerly NFL2K. The sale also came with Visual Concept's wholly-owned subsidiary Kush Games. Take Two subsequently announced the start of the publishing label 2K Games because of this purchase.

Success again (2006 - 2013)

By the end of 2005, Sega experienced strong earnings growth across multiple divisions. Contributing to the company's success were strong pachinko sales[3], and sales of software titles Ryu Ga Gotoku (Known as Yakuza outside of Japan), Mushiking, and Sonic the Hedgehog.

In an effort to appeal to western tastes, they partnered with Obsidian Entertainment to develop a new RPG for the PlayStation 3 and Xbox 360.[4] The partnership was the latest in a series of collaborations with western video game studios, including Monolith Productions (Condemned: Criminal Origins), Bizarre Creations (The Club) and Silicon Knights.

That desire to have a more Western appeal for Sega was shortly followed up by Sega acquiring British developer Sports Interactive after a successful run of publishing Football Manager 2005 and 2006, in which they managed to sell 1.5 million copies,[5] the deal was said to be worth in the region of £30 million by Miles Jacobson, Sports Interactive’s Managing Director.[6] This was, however, not the only developer Sega had acquired, they also purchased American developer Secret Level although the terms of the deal was not disclosed,[7] SEGA establishes new internal development arm in US //] Secret Level had however begun work before being bought by Sega to “recreate a classic Sega franchise" for the PS3 and Xbox 360 July 2005, which was revealed to be Golden Axe later that year.

While Sega continued its expansion in the West, on May 8, 2006, it was announced Sega of Japan begun helping famed Sega developer and Sonic Team head Yuji Naka (known for being the main programmer for the original Sonic the Hedgehog games and Nights into Dreams...) to start up his own company titled "Prope" in which Sega helped provide 10% startup capital[8] and have the option to publish games produced from the studio if they wished to.

Due to the continued success of Sega’s software sales, the company reported on May 17, 2006 a 31% rise in net profits from that of the previous year of the period ending March 31, 2006, being posted at ¥66.2 billion ($577 million), as well as an increase in operating profit growing by 13% from the previous year, being posted at ¥553.2 billion ($4.82 billion[9] notable titles to have helped Sega increase profits in the West being that of Shadow the Hedgehog (which sold over a million copies)[10] Sega Sammy reports 31 per cent rise in profits //] and Sonic Riders, whilst in Japan, games such as Yakuza, Mushi King and Brain Trainer Portable continued to sell strong.

Although Sega seemed poised to continue increasing profits, the company reported a massive drop of 93% profits for the period ending June 30, 2006 compared to the same period last of year. Net income for the company dropped from $98.3 million (a year earlier) to $7.12 million for this period ending as well of total sells dropping from $926.5 million to $809.1 million [11], Sega reported that the decrease in profits was due to no significant big releases by its slot machine division. However, a total of 2.1 million games were sold between the period, 870,000 in the US, 680,000 in Europe and 580,000 in Asia. Despite this, Sega Sammy said that the results were in line with their expectations and did not amend their full year forecasts.

Despite this, Sega reported in November a massive 52% rise in profits for the periods between April and September 2006, compared to the same period last year.[12] Software sales for the company had also increased with 5.75 million. Of those units, 1.76 million were sold in Japan, 1.59 million in Europe, 2.36 million in the US and 30,000 in other regions.[13] a number of titles were said to have performed well, in particular Super Monkey Ball: Touch & Roll for the Nintendo DS and Football Manager 2006 for the Xbox 360 having sold well. While Sega performed better in 2006, they had slashed their forecasts for the year ending March 2007 by 20% with an anticipated profit of $536.7 million, down from the initial profits of $656.7 million.

Massive growth and international expansion (2013 - present)

In 2013, SEGA acquired Atlus, Career Soft and Relic Entertainment. Ever since, the company has been growing at an unprecedented rate, delivering several successful games, buying out a steady number of studios, and garnering more of a global presence, reporting $3 billion in revenue anno 2021.


As of 2020, SEGA owns all of the following companies:

Gaming companies

Name Location Assets Acquisition Notes
Amplitude Studios France

Endless series
Love Thyself: A Horatio Story

Atlus Japan

Etrian Oddysey series
Megami Tensei series

Devil Children series
Devil Survivor series
Last Bible series
Persona series
Majin Tensei series
Shin Megami Tensei series

Power Instinct series
Radiant Historia
Trauma Center series

2013 Restored after being
absorbed by Index Corporation
Career Soft Japan

Elthlead series
Growlanser series
Langrisser series (Formerly)

2001 (By Atlus) Categorized under Atlus, rather than directly under Sega
Creative Assembly, The United Kingdom

Alien: Isolation
Spartan: Total War
Total War series
Viking: Battle for Asgard

Ignited Artists United States


Megasoft Japan

Aa Harimanada
Battle Golfer Yui
Mahjong Cop Ryuu
Shinobi III: Return of the Ninja Master
Space Harrier

Play Heart Japan

Gold Rebellion R
Last Legion

2015 Acquisition not covered by any major news site,
but confirmed by SEGA in its annual report, and backed up by
corporate databases like Crunchbase and
Relic Entertainment Canada

Company of Heroes series
Homeworld series (Formerly)
Impossible Creatures
The Outfit
Warhammer 40,000: Dawn of War series

Renovation Products United States

Beast Wrestler
DJ Boy
Elemental Master
El Viento
Jennifer Capriati Tennis
Sol Deace
Vapor Trail
Whip Rush

Sports Interactive United Kingdom

Eastside Hockey Manager series
Football Manager series
Out of the Park Baseball Manager series

Technosoft Japan

Herzog series
Thunder Force series

2016 Assets owned fully by SEGA;
brand name is used both by SEGA and Twenty-One Company
Two Point Studios United Kingdom

Two Point Hospital



Name Location Industry Assets Acquisition Notes
ENGI Japan Animation

Full Dive anime
Kantai Collection Project anime
Kemono Michi: Rise Up series
The Detective is Already Dead anime

2018 40% of shares only
Marza Animation Planet Japan Animation

Lupin III: The First
Sonic the Hedgehog films
Cutscenes for SEGA games

2003 Categorized under TMS Entertainment,
rather than directly under Sega
TMS Entertainment Japan Animation

Bakugan franchise
Sonic X
Anime adaptations of various manga

Wave Master Japan Music, films, TV, games (until 2003)

Puyo Pop (GBA)
Roommania series
Sound design for SEGA games

Yonezawa Toys (Sega Toys) Japan Toys




  • Gulf + Western (Owner, 1969 — 1984)
  • CSK (Largest shareholder, 1984 — 2004)
  • Sega-Sammy Holdings (Parent, 2004 — present)

Company policy and characteristics

Community involvement

SEGA is highly involved with its community.

It is incredibly tolerant of fan creations, and often responds to and spreads awareness of fan works itself. SEGA also fully endorses the Sonic ROM hacking and fangame community, and frequently supports their cause. Several talented fan game creators, ROM hackers, modders and music remixers of SEGA titles often end up hired by SEGA itself; most famously, Christian "Taxman" Whitehead, a prominent developer of Sonic fangames and ROM hacks, was hired by SEGA in 2009 to develop ports of Sonic 1, 2 and CD. Later, they hired other ROM hackers, and also indie musicians famous for Sonic remixes, to develop Sonic Mania.

SEGA frequently visits fan sites and communities based on its games, and often hands out Official SEGA Seals of Quality to them. So far, SEGAbits, SEGA16, The Sonic Stadium, TSSZ News and Mega Visions have all received the Seal.

SEGA allows anyone who operates or owns such a fan community, or who creates SEGA fanart, animations, music, games, mods or hacks, to draw its attention and show their creations to them through

Charity and philantropy

SEGA consistently supports charitable work and attempts to encourage other developers to do the same. Through several programmes, SEGA supports, sponsors and raises awareness for children's hospitals, Stand Up to Cancer, sanctuaries for endangered animals, the Red Cross, Doctors Without Borders, War Child Gaming (An initiative to provide education and healthcare to children in war zones) and initiatives to support people with disabilities. Through Humble Bundle, SEGA has raised over $2 million for a variety of different charities.


External links