海子 UMIKO

Psychological horror visual novel about maintaining a fragile cross-dimensional friendship

盾构机 Tunnel Boring Machine · Released Sep 24, 2025

Reviews: Very Positive; 99% of 75
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 1 year ago; Sep 30, 2025
Minimum PC: The should display normal…; 0.5 GB RAM · 0.2 GB disk; Full requirements

What is 海子 UMIKO?

A free, single-player visual novel about a girl named Umiko who calls you from another dimension. Over an in-game week, you talk with her, complete mini-games, solve puzzles, read hidden texts, and collect album photos to uncover her world's past.

For you if...

+you prefer short stories with multiple endings

Not for you if...

−you avoid loud noises, flickering screens, and sudden scares

Screenshots and trailer

海子 UMIKO system requirements

Minimum: The should display normal…, 0.5 GB RAM, 0.2 GB of disk space.

As published by the developer.

Can my PC run 海子 UMIKO?

The published requirements do not name a graphics card we can compare.

Set up my PC →

Minimum

OS: Any version of Windows
Processor: The programs should run normally as long as the computer can still start up.
Graphics: The graphics should display normally as long as the screen can still light up.
Memory: 512 MB RAM
Storage: 200 MB available space

Does 海子 UMIKO have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does 海子 UMIKO run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Steam features: Family Sharing
Languages: Text only: Simplified Chinese.

Does 海子 UMIKO use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam