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Return to Shironagasu Island

A mystery adventure game and visual novel set on solitary Shironagasu Island. Discover its secrets, solve its mysteries, and escape from the ominous island!

Steam Page
Developer
HYOGO ONIMUSHI
Publisher
TABINOMICHI
Release
March 2, 2020
6 years and 154 days ago
Steam Reviews
Very Positive4,164 reviews93.7%

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Notes
Latest Contributor: IGF TeamEdit notes
Updated: Jul 14, 2026Developer scaleThe operating scale of the game's developer.
Updated: Jul 14, 2026Publisher scaleThe operating scale of the game's publisher.
A separate publisher is listed without a proven bounded regional or service-only role.
Search Google: Is Return to Shironagasu Island self-published or published by TABINOMICHI?Publisher statusHow the game's publishing relationship is classified.
Search Google: How is Return to Shironagasu Island and TABINOMICHI funded?FundingThe known source of funding behind the game.
Search Google: Who controls the creative direction and IP for Return to Shironagasu Island and HYOGO ONIMUSHI?Creative controlWho appears to retain creative control of the game.
Updated: Jul 14, 2026Release statusWhether and how the game has been released.
The title released with a separate publisher relationship.

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About the Game


I'm going back to the sinister Shironagasu Island...

A mystery adventure game and visual novel set on solitary Shironagasu Island.
Explore the island and discover its sinister secrets as detective Sen Ikeda and your assistant Neneko Izumozaki.


Sen Ikeda, a detective in New York, receives a mysterious invitation to Shironagasu Island in the testament of a millionaire. Together with Neneko Izumozaki, a girl with special abilities, he travels to the secluded island.
Solve numerous mysteries and murders!
Meet enigmatic and captivating characters!
Discover the hidden secret of Shironagasu Island!
Stay alive and escape from the ominous island!





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