developer

Treasure

トレジャー

Japan

About

Treasure is a Japanese video game developer founded on June 19, 1992 by Masato Maegawa and colleagues who left Konami. Known for technically precise action games and shoot-em-ups — including Gunstar Heroes, Radiant Silvergun, Ikaruga, and Sin & Punishment — the studio built its reputation on small teams, uncompromising design, and approximately thirty games in thirty years.

History

In 1991, a programmer at Konami named Masato Maegawa had an idea for an original action game — fast, technically ambitious, unlike the licensed titles and sequels that Konami's business required. Konami turned it down. What happened next was not unusual for a disappointed developer: Maegawa told his colleagues, some agreed the idea was worth building, and a small group began to consider leaving. The question was whether to bet a company on a rejected pitch.

On June 19, 1992, Maegawa and approximately eight former Konami colleagues registered a company called Treasure. The name carried a specific intention: they wanted to be a treasure to the game industry — making things the industry would not otherwise have. The founding team had worked on Super Castlevania IV, Contra III: The Alien Wars, Axelay, and The Simpsons arcade game. They were not leaving out of frustration alone; they were leaving to test whether what Konami had rejected was actually worth making.

The answer arrived in September 1993: Gunstar Heroes for the Sega Genesis, published by Sega. The game demonstrated what the small team could extract from Genesis hardware — particularly the Seven Force boss sequence, a single enemy that transformed through seven distinct forms to showcase the full range of technical possibilities in one encounter. It was received as an instant classic, establishing Treasure's reputation in its first release and beginning a relationship with Sega that would define the studio's early years.

Treasure spent its first five years almost entirely on Sega hardware. Dynamite Headdy (1994) built every level around a character who could detach and swap heads. Alien Soldier (1995) inverted the action-game structure: nearly the entire game was boss encounters, with minimal sections between them. Guardian Heroes (1996) brought the belt-scrolling brawler to the Saturn with branching story paths and RPG progression layered underneath. Each project asked a different formal question about what action games could do. Radiant Silvergun (1998), released in arcades and on the Saturn, became the work most associated with Treasure's identity — a vertical shooter in which players sorted bullets by color, earning points through engagement rather than avoidance.

Maegawa consistently described Treasure's approach in terms of autonomy and intentional scale. The company did not grow in the way that successful game studios typically grow — it stayed small by design. Staff worked in small clusters on specific systems; the studio head was not involved in daily production decisions. The result was that each Treasure game carried the fingerprints of the people who made it, rather than a house style imposed from above. The tradeoff was an output that remained deliberately limited: approximately thirty games in thirty years.

Ikaruga (2001) extended Radiant Silvergun's color-sorting logic into a fully duochromatic design: the player's ship could switch polarity between black and white, absorbing same-color bullets and dealing increased damage to the opposite color. Released for the Dreamcast and later the GameCube, it reached a Western audience that had largely missed its predecessor. Gradius V (2004) returned Treasure to Konami in a development collaboration — the studio that had once rejected Maegawa's original concept now hired his company to revive their flagship shooter series. Sin & Punishment: Star Successor (2009) for Wii, published by Nintendo, was the last widely-released Treasure title to reach international markets. The studio's final new releases were 3DS collaborations with Capcom in 2013 and 2014. On June 19, 2022 — the company's 30th anniversary — Treasure posted that it was working on a 'highly requested title.' Radiant Silvergun was re-released on Nintendo Switch that September. No new game has been announced as of 2025.

Timeline & Works

Corporate milestones and all 12 games in the museum this studio developed — in the order they happened.

  1. 1992 06

    Treasure founded

    Masato Maegawa and approximately eight former Konami colleagues found Treasure Co., Ltd. on June 19, 1992.

    founding
  2. 1993 09

    Gunstar Heroes

    Treasure's debut, published by Sega for the Genesis. Immediately recognized as a technical and creative landmark, establishing the studio's reputation in its first release.

    product
  3. 1993
    Gunstar Heroes

    Sega Mega Drive / Genesis

  4. 1994 10

    Dynamite Headdy

    A Genesis platformer built entirely around a character who can swap heads — each head type changes gameplay mechanics and level-design logic.

    product
  5. 1994
    Dynamite Headdy

    Sega Mega Drive / Genesis

  6. 1995 02

    Alien Soldier

    A Genesis action game that inverts the genre's structure: the game is almost entirely boss encounters, testing whether a stage's 'climax' could become the entire experience.

    product
  7. 1995
    Alien Soldier

    Sega Mega Drive / Genesis

  8. 1995
    Light Crusader

    Sega Mega Drive / Genesis

  9. 1996 03

    Guardian Heroes

    A Sega Saturn brawler with branching story paths and RPG progression — one of the definitive Sega Saturn titles.

    product
  10. 1996
    Guardian Heroes

    Sega Saturn

  11. 1997 06

    Mischief Makers — first Nintendo title

    Mischief Makers launches on N64, marking Treasure's first departure from Sega hardware and the beginning of its relationship with Nintendo.

    product
  12. 1997
    Mischief Makers

    Nintendo 64

  13. 1997
    Silhouette Mirage

    Sega Saturn

  14. 1998 05

    Radiant Silvergun

    Released in Japanese arcades and on Sega Saturn. A vertical shooter in which bullets are sorted by color to score points — considered among the finest shoot-em-ups ever made.

    product
  15. 1998
    Radiant Silvergun

    Sega Saturn

  16. 1999
    Bangai-O

    Dreamcast

  17. 2000 11

    Sin and Punishment (N64, Japan only)

    Co-developed with Nintendo R&D1 and published by Nintendo in Japan. Sin and Punishment reached Western players only through Wii Virtual Console in 2007, seven years later.

    product
  18. 2000
  19. 2001 12

    Ikaruga

    Released for Dreamcast (and later GameCube), Ikaruga brought Treasure to a new Western audience with its duochromatic polarity-switching design. Metacritic 85 (GC).

    product
  20. 2002
    Ikaruga

    Dreamcast

  21. 2003
    Wario World

    Nintendo GameCube

  22. 2004 07

    Gradius V — returning to Konami

    Treasure develops Gradius V for Konami, co-developed with G.rev for PS2 — a development collaboration with the company that once rejected the original Gunstar Heroes pitch.

    product
  23. 2009 10

    Sin & Punishment: Star Successor (Wii)

    The sequel to Sin and Punishment, published by Nintendo worldwide on Wii — the last widely-distributed Treasure title to reach international markets.

    product
  24. 2022 06

    30th anniversary — new title teased

    On June 19, 2022, Treasure posts that it is working on a highly requested title. Radiant Silvergun is re-released on Nintendo Switch in September 2022. No further announcement as of 2025.

    product

Connections

  • collaborated with sega (1993–1998)

    Sega published most of Treasure's early Genesis and Saturn titles, 1993–1998.

  • collaborated with nintendo (1997–present)

    Nintendo published multiple Treasure titles from Mischief Makers (N64, 1997) through Sin & Punishment: Star Successor (Wii, 2009).

  • collaborated with konami (2004–2004)

    Treasure developed Gradius V for Konami (PS2, 2004), co-developed with G.rev — a collaboration with the company that had originally rejected the Gunstar Heroes pitch.

Stories featuring Treasure

Rooms their games live in

Sources

  1. Treasure (company) — Wikipedia — accessed 2026-06-10
  2. Masato Maegawa — Wikipedia — accessed 2026-06-10
  3. Treasure 12th Anniversary Developer Interview — shmuplations.com — accessed 2026-06-10
  4. The Birth of Seven Force — Raster Scroll Books — accessed 2026-06-10
  5. Nintendo Fandom — Treasure Co., Ltd — accessed 2026-06-10