海子 UMIKO

77KS
Released Sep 24, 2025by 盾构机 Tunnel Boring MachineVery Positive(99% of 68 Steam reviews)

"海子 UMIKO" is a psychological horror visual novel. Engage in conversations with Umiko, complete various mini-games, solve puzzles, and gradually piece together the dark truths she tries to hide about herself and her dimension from fragmented narratives. Preserve your fragile friendship for a week!

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About 海子 UMIKO

"海子 UMIKO" is a psychological horror visual novel. Through direct conversations between the player and the unfamiliar girl "Umiko," as well as fragmented narratives hidden within mini-games and puzzles, this game pieces together a past event that occurred in her dimension.

Game Content

Engage in conversations with the unfamiliar girl "Umiko,"

complete various mini-games, solve puzzles,
read hidden texts, collect all the photos in the album,
piece together the complete story of Umiko and her dimension's past and present,

attempt to change how the story ends,
and do everything you can to maintain your fragile friendship for a week!

Game Duration: Approximately 1 hour; 
Number of Endings: 6 wrong endings and 1 true ending.

About Story

This is a story about 【Ending】.
As summer approaches and summer nears its end,

the lively and adorable unfamiliar girl "Umiko" sends you a cross-dimensional call request.
Chatting with her might be a great way to pass the time!
Whether the topic is friendship, food, or fashion, she is always willing to talk openly with you.
Gradually uncover Umiko's story and the world she inhabits through lighthearted and harmonious interactions!

...However, what exactly is the 【unforgivable, irreversible thing】 that Umiko has been trying to hide, the thing she once did?
When and where did the story about 【Me】, 【Leader】, and 【Senior】 that appears on the screen take place?
The occasional static, screen distortions, and faint low-frequency noises...
Everything feels unsettling yet intriguing.

Still, no matter what happens on the other side of the screen, it won't affect 【you】, so there's nothing to worry about.

Content Warning

During gameplay, there may be loud noises, screen flickering, and sudden horror elements. This game is not suitable for individuals with photosensitive epilepsy, children or those who are easily disturbed.

Game details

海子 UMIKO player count & reviews

99% positive reviews all-time · 2 peak players in the last 30 days.

海子 UMIKO — frequently asked questions

How many people play 海子 UMIKO?

海子 UMIKO peaked at 2 concurrent players on Steam in the last 30 days (highest on Jul 21, 2026). The player chart on this page updates daily.

How can I get 海子 UMIKO at a discount?

Create a free price alert on this page and KingsPrice will email you when 海子 UMIKO drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.

System requirements

Minimum

Minimum:
  • OS: Any version of Windows
  • Processor: The programs should run normally as long as the computer can still start up.
  • Memory: 512 MB RAM
  • Graphics: The graphics should display normally as long as the screen can still light up.
  • Storage: 200 MB available space
  • Sound Card: The audios should play normally as long as the speakers can still produce sound.

Recommended

Recommended:
  • OS *: Windows 98/Me/XP/Vista/7/8/8.1/10
  • Processor: Intel I3/I5/I7
  • Memory: 4 GB RAM
  • Graphics: nVidia GT1030
  • Storage: 200 MB available space
  • Sound Card: Realtek

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