Horror visual novels Psychological horror

Return to Shironagasu Island

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A dead millionaire's invitation, an island mansion, and a demon nobody will explain.

Platforms: PC, Mac, Switch, iPhone
Stores: Steam
Price: Paid
Rated: Very Positive on Steam (94% of 4,319 reviews)
Players: 1
Made by: ONIMUSHI Hyogo
Released: 2020

Get it on Steam Nintendo eShop (Switch)App Store (iPad)

What frightens A New York detective and a painfully shy girl with strange powers answer a dead millionaire's invitation to a remote island mansion. Guests start dying, people talk of a demon of Shironagasu Island, and the island's secret pulls the story from a closed-circle murder mystery into gruesome, B-movie horror where you must stay alive and get off the island.
Content: gore (mentioned by players), sexual exploitation themes and sexualised art of young chara, murder.

Return to Shironagasu Island is a mystery and horror visual novel by the solo Japanese developer ONIMUSHI Hyogo. As detective Sen Ikeda and his shy assistant Neneko, you travel to a secluded island, investigate murders among its guests and try to escape alive as the island's secret comes out.

About Return to Shironagasu Island

Return to Shironagasu Island is a visual novel and mystery adventure written, drawn and made by one Japanese developer, ONIMUSHI Hyogo, and published by TABINOMICHI. It came out on Steam in March 2020, reached Nintendo Switch in November 2022 with voice acting, and later came to iPad.

Sen Ikeda, a detective working in New York, receives an invitation in a millionaire's will to the remote Shironagasu Island. He travels there with Neneko Izumozaki, a girl with special abilities who can barely speak to strangers. At the Higgins mansion they meet the other guests, and soon people begin to die.

You read the story, choose who to question and what to look into, and face a few timed choices where hesitation can cost lives. It opens like a classic closed-island whodunnit, and players compare its start to Umineko, but the island hides something far uglier, and the second half turns gruesome and bizarre. Some scenes are tense and frightening, others lean toward B-movie excess.

Players praise the pace and the pairing of the calm, joking detective and his anxious assistant, and criticise some fan service and the rough edges of a one-person project. A first read takes players around ten to fifteen hours. It suits readers of mystery and horror visual novels who enjoy a story that keeps escalating.

How to play Return to Shironagasu Island

Buy it on Steam (Windows or Mac), the Nintendo eShop or the App Store for iPad.
Read the story and advance the text, saving often from the menu.
Choose who to question and what to examine when the game gives you options.
Answer timed choices before the bar runs out; hesitating can be fatal.
Keep reading to uncover the island's secret and find a way off it.

Screenshots

The white Higgins mansion on the island, with Ikeda saying they have arrived

Two young women in dark formal clothes greeting the detective in the mansion's lounge

A dark-haired woman in a dim room with choices to ask about the island's secret and the demon of Shironagasu Island

A timed choice with a red remaining-time bar as a blonde girl collapses on the floor, saying she is dying

Tips

Save before every choice so you can go back if a decision goes badly.
Pay attention to what each guest says early on; it matters later.
On Steam, players note that the English version ships without voice acting; the Switch version has the voices.
Expect the tone to shift from mystery to grisly horror partway through.