From Sega Retro


Publisher: Vivarium (JP), Sega (US)
System(s): Sega Dreamcast
Peripherals supported: Dreamcast VGA Box, Visual Memory Unit, Dreamcast Microphone
Genre: Simulation

Number of players: 1
Release Date RRP Code
Sega Dreamcast
¥6,800 T-39402M
Sega Dreamcast
JP (Special Package Ban)
¥7,800 T-39401M
Sega Dreamcast
$? 51048

Seaman, called Seaman: Kindan no Pet (シーマン 〜禁断のペット〜) in Japan, is a video game developed by Vivarium for the Sega Dreamcast in 1999. It debuted with the Dreamcast Microphone, which was bundled with the game. The game was not released in Europe (plans were once in place to release it there in 2001), though the Microphone accessory was (Planet Ring being the only game released in that region to be compatible with the peripheral). The game was later ported to the PlayStation 2 in 2001.

Japanese consumers also had an option to buy a "Special Package" bundle, which as well as including the game and microphone, also included a clear VMU (as the game requires one to function).


Seaman's face is that of Yoot Saito, the leading man behind Vivarium.



For a while after its release, Seaman was the best-selling Dreamcast game in Japan, beating Sonic Adventure and SoulCalibur[1]. Famitsu sales charts compiled until early 2004 show it as the third highest-selling Dreamcast game of all-time in that region[2].

Sequels/updates Christmas Seaman and Seaman 2001 were released in Japan, and the game was also followed by a PlayStation 2 sequel, Seaman 2.

Production credits

  • Produced & Game Designed By: Yoot Saito
  • Development Directed By: Satoshi Endo, Arka Roy
  • Graphics Directed By: Atsushi Hotta
  • Programings By: Kazuhiko Sugita, Tak Suzuki, Shigekazu Ito, Yoshito Hirose
  • Graphics by: Tomomasa Ueda, Bujin Hirai, Nobuyuki Usuki, Koichi Okada
  • Graphics by: Minoru Urano, Yoko Shibusawa, Yiting Fu, Cozzy Sumitomo, Makoto Iwanaga
  • Narrations By: Toshiyuki Hosokawa
  • Musics By: Trans Global Underground
  • Developed by: Vivarium Inc
  • Presented & Copyrights All Reserved By: Digitoys Co.,Ltd

See You In Seaman2001

Source: In-game credits (JP)

US Version Credits
Manual Production Staff
Japanese Version Original Staff
  • Producer and Game Designer: Yoot Saito
  • System Designer: Aka Roy
  • Director: Satoshi Endo
  • Art Director: Atsushi Hotta
  • Programmers: Kazuhiko Sugita, Takahisa Suzuki, Shigekazu Ito, Yoshito Hirose
  • Sound: Tsuneo Kaneda
  • Graphic Artists: Makoto Iwanagawa, Tomomasa Ueda, Nobuyuki Usuki, Minoru Urano, Koichi Okada, Yoko Shibusawa, Bujin Hirai, Yiting Fu, Cozzy Sumitomo
  • Assistant Programmers: Ryo Takeishi, Makoto Fukuichi, Tomomi Hiramatsu
  • All trademarks are the property of their respective owners.
  • "WIFFLE" is a registered trademark of The Wiffle Ball, Inc. and is used with permission.
Source: US manual

Magazine articles

Main article: Seaman/Magazine articles.

Promotional material


EGM US 132.pdfEGM US 132.pdf

Print advert in
Electronic Gaming Monthly (US) #132: "July 2000" (2000-06-06)
also published in:
  • GamePro (US) #143: "August 2000" (2000-xx-xx)[3]
  • Electronic Gaming Monthly (US) #134: "September 2000" (2000-08-08)[4]

Famitsu JP 0555.pdf

Print advert in
Weekly Famitsu (JP) #555: "1999-08-06" (1999-07-23)
also published in:

DCM JP 19990813 1999-25.pdfDCM JP 19990813 1999-25.pdf

Print advert in
Dreamcast Magazine (JP) #34: "1999-25 (1999-08-13, 20)" (1999-07-30)

Physical scans

Sega Retro Average 
Publication Score Source
80 №16, p80/81[6]
73 №1999-24, p19Media:DCM_JP_19990806_1999-24.pdf[7]
84 №, p34[8]
60 №89, p103[9]
73 №555, p30
Sega Dreamcast
Based on
5 reviews

Dreamcast, US
Seaman DC US Box Back.jpgNospine-small.pngSeaman DC US Box Front.jpg
Seaman dc us disc.jpg
Seaman DC US Box Back JewelCase.jpgSeaman DC US Box Front JewelCase.jpg
Jewel Case
Dreamcast, JP
Seaman DC JP Box Back.jpgNospine-small.pngSeaman DC JP Box Front.jpg
Dreamcast, JP (Special Package)
Seaman DC JP Box Back Special.jpgNospine-small.pngSeaman DC JP Box Front Special.jpg

External links

  • Sega of Japan catalogue pages (Japanese): Dreamcast