Koei Tecmo

• 1. Introduction

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  Koei Tecmo is one of Japan's most storied video game holding companies, born from a merger that almost did not happen. In August 2008, a rival corporation made a bold move to absorb a struggling Tokyo developer. That bid would be rejected in a matter of days. And out of that rejection came a new corporate giant. The story of how two very different companies found each other starts decades earlier, in a dyestuffs shop that went out of business and a cleaning supply company that discovered it had a taste for games.

• 2. Koei's Origins

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  Koei Co., Ltd. was founded in July 1978 by husband-and-wife team Yoichi and Keiko Erikawa. Yoichi had been a student at Keio University when his family's rural dyestuffs business failed, and he turned to programming as a new direction. The company set up in the Hiyoshi area of Yokohama, steps from Yoichi's alma mater, and its name is a deliberate spoonerism of the university's. Early years were spent on personal computer sales and made-to-order business software, a far cry from what Koei would become.

  In 1983, Koei released Nobunaga's Ambition, a historical strategy game set during Japan's turbulent Sengoku period. The title earned numerous awards and pointed the company toward its signature strength: games rooted in real history. Romance of the Three Kingdoms followed, drawing on the era of warring states in ancient China. Uncharted Waters placed players along the coast of Portugal during the Age of Exploration.

  By 1988, Koei had established a North American subsidiary called Koei Corporation, based in California. Designer Stieg Hedlund led an effort to create original titles for western markets, producing Liberty or Death, Celtic Tales: Balor of the Evil Eye, and Gemfire. After Hedlund's departure, the subsidiary stopped making original games in 1995 and shifted its focus to localization, sales, and marketing.

• 3. Tecmo's Separate Path

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  Yoshihito Kakihara founded what would become Tecmo on the 31st of July 1967, under the name Tehkan, as a supplier of cleaning equipment. Two years later, the company pivoted to selling amusement equipment, taking its first step toward the games industry. Headquarters were in Kudankita, Chiyoda, Tokyo, with U.S. offices eventually set up in Torrance, California.

  In March 1981, a U.S. division called U.S. Tehkan, Inc. opened. The very next month, Tehkan released its first arcade video game in Japan: Pleiades, distributed in America by Centuri. Classic titles from the Tehkan years include Bomb Jack and Tehkan World Cup. On the 8th of January 1986, the company officially became Tecmo.

  Tecmo found itself in the headlines in 1989 when Indianapolis Colts running back Eric Dickerson sued the NFL Players Association over the use of his likeness in Tecmo Bowl, naming Tecmo as a co-defendant. Years later, on the 3rd of June 2008, Team Ninja head Tomonobu Itagaki resigned and filed a 145 million yen lawsuit against then-president Yoshimi Yasuda, claiming unpaid completion bonuses and emotional distress. On the 16th of June 2008, two plaintiffs filed a second lawsuit on behalf of Tecmo's 300 employees, seeking recovery of 8.3 million yen in unpaid wages. Founder Yoshihito Kakihara had died two years earlier, in 2006, of interstitial pneumonia, leaving the company without the steadying hand that had guided it for nearly four decades.

• 4. The Merger That Almost Wasn't

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  On the 20th of August 2008, Tecmo announced the resignation of president Yoshimi Yasuda, to be replaced by Yasuharu Kakihara as of the 1st of September. Eight days later, Square Enix announced plans for a friendly takeover of Tecmo, offering to purchase shares at a 30 percent premium, with a total bid of 22.3 billion yen. Square Enix gave Tecmo until the 4th of September to accept or reject.

  Kenji Matsubara, President and COO of Koei, heard the news on the 31st of August and called a board meeting for the following day. The board discussed a possible merger with Tecmo, and talks began immediately. On the 4th of September, Tecmo officially declined Square Enix's proposal. Later that same day, Tecmo announced plans to merge with Koei instead. Matsubara later described the speed of the agreement: the discussion started on September 1st and was resolved within two days. He credited a longstanding personal relationship between the founding families of both companies.

  Not everyone was on board. Effissimo Capital Management Pte, Tecmo's second-largest shareholder at 17.6%, openly opposed the merger. On the 26th of January 2009, shareholders from both Koei and Tecmo voted separately in favor of the deal, but Effissimo raised dissent and indicated it might sell its shares. Effissimo's director Takashi Kosaka stated that the fund had not received sufficient information to evaluate the plan's impact on shareholder value. Combined profits for both companies in 2007 were 8.5 billion yen, and the new entity projected earnings above 16 billion yen by the fiscal year ending March 2012.

• 5. Building the New Company

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  Despite Effissimo's opposition, the holding company formed on the 1st of April 2009, exactly as planned. Kenji Matsubara became CEO, and former Tecmo CEO Yasuharu Kakihara took the role of board chairman. By the 26th of May, Tecmo Koei and Effissimo had still not reached a stock valuation agreement. The fund sought mediation at the Tokyo District Court. Tecmo Koei believed the fair share value sat in the mid-600 yen range; Effissimo was expected to push for at least 900 yen, partly on the strength of the Square Enix offer of 920 per share.

  Koei Europe became Tecmo Koei Europe and published its first title under the new name with Ninja Gaiden Sigma 2. In August 2009, the company established a subsidiary in Hanoi, Vietnam. In January 2010, the American branches of both Tecmo and Koei were consolidated under a new entity, Tecmo Koei America Corporation. On the 1st of April 2010, Tecmo was formally disbanded in Japan; Koei absorbed it to create Tecmo Koei Games.

  Continued operating losses led Matsubara to resign in November 2010. Yoichi Erikawa, co-founder of Koei, stepped in to fill all four positions Matsubara had vacated. On the 1st of July 2014, the holding company and its subsidiaries were renamed from Tecmo Koei to Koei Tecmo. The name order changed; the logo did not.

• 6. Studios and Divisions

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  Team Ninja, stylized as Team NINJA, was founded in 1995 as a development studio within Tecmo. Formerly led by Tomonobu Itagaki, it built its reputation on masocore and fast-paced action games, most prominently the Dead or Alive, Ninja Gaiden, and Nioh series. Ruby Party operates in a very different register, specializing in otome game visual novels and dating simulations under the Neoromance label. Its Angelique series, in production since 1994, holds a place in gaming history as the first otome game ever made.

  Gust Co. Ltd. was founded in 1993 and developed RPGs including the long-running Atelier series, along with Surge Concerto, Nights of Azure, and BLUE REFLECTION. Koei Tecmo acquired Gust in 2011 and absorbed it fully in 2014. Omega Force, known internally as o-Force, is the division behind the Dynasty Warriors franchise and its many spin-offs, including Samurai Warriors, Warriors Orochi, and several licensed titles like Dragon Quest Heroes and Attack on Titan.

  A division named Kou Shibusawa was established on the 18th of February 2016, taking the stage name used by Koei co-founder Yoichi Erikawa. This division manages the historically based franchises: Nobunaga's Ambition, Romance of the Three Kingdoms, Uncharted Waters, Nioh, and the horse racing simulation Winning Post. It also collaborated with Intelligent Systems and Nintendo on Fire Emblem: Three Houses. The newest studio, AAA Games Studio, was founded in 2024 with Yosuke Hayashi at the helm. Its first project was Hyrule Warriors: Age of Imprisonment, a collaboration with Nintendo's The Legend of Zelda series, which released on the 6th of November 2025 for the Nintendo Switch 2.

• 7. Leadership Into the Future

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  On the 10th of February 2025, Koei Tecmo announced a leadership transition set for the 1st of April 2025. Hisashi Koinuma, who had served as representative director and executive vice president of Koei Tecmo Holdings, would become president and CEO. Yoichi Erikawa, who had co-founded Koei in 1978 and had long used the pen name Kou Shibusawa for the historical game division that bears that name, would move to representative director and chairman. His wife Keiko Erikawa, the other co-founder, would transition from representative director and chairman to director and chairman emeritus. She would also take on the role of representative director and president of a newly formed entity called Koei Tecmo Corporate Finance, established on the same date to manage investment functions previously held by Koei Tecmo Games. The company described the restructuring as an effort to strengthen governance around investments and sharpen cash management across the broader group.