Project Siren

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Project Siren
Subsidiary of SIE Japan Studio
Industry Computer and video games
Interactive entertainment
Founded 1999
Founder Keiichiro Toyama
Headquarters Japan
Key people
Keiichiro Toyama (director)
Isao Takahashi (art director)
Naoko Sato (writer)
Products Siren series
Gravity Rush series
Owner Sony Corporation
Number of employees
Parent SIE Worldwide Studios

Project Siren (also known as Team Gravity) is a video game development team that works within SIE Japan Studio. It is best known for the survival horror series Siren, released for PlayStation 2 and PlayStation 3. The team is led by game designer and director Keiichiro Toyama.

Following development on the Siren series, Project Siren began development on Gravity Rush for the PlayStation Vita, which was released throughout various regions in 2012.


Main members of Project Siren. From left to right: Keiichiro Toyama, Naoko Sato, Isao Takahashi.
Title Release date Platform(s)
Siren 2003 PlayStation 2
Forbidden Siren 2 2006 PlayStation 2
Siren: Blood Curse 2008 PlayStation 3
Gravity Rush 2012 PlayStation Vita
Gravity Rush 2 2017 PlayStation 4


External links

  • Official website (in Japanese)
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