海子 UMIKO
Release date: Sep 24, 2025
Developers: 盾构机 Tunnel Boring Machine
Publishers: 盾构机 Tunnel Boring Machine
Genres: RPG, Free To Play
Categories: Single-player
Supported languages: Simplified Chinese

'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.