

MORSOMNIA:0
沐沐睡星 · 2025 · Atmospheric, Cute, Psychological Horror, Sci-fi, Surreal
PC
This game is free to play. Get it on Steam →
Screenshots
About MORSOMNIA:0

MORSOMNIA:0 is a wonder fancy adventure game in which the player progresses through the story while performing the duties of a caretaker of the unidentified life form “Kuon”.
Game Overview
Interact with “Kuon”, a life form isolated underground.
There is no difficult system, and the story progresses by reading the text.
As a side trip, you can have a quick meal in the cafeteria and interact with the staff in the institute. You may receive a mysterious gift as a token of our exchange...?
You can keep things running smoothly or take a break at a café.
You are free to do whatever you want! In this institute.
Soon, Kuon will swallow you to a different fate.

story
The main character “Kaiyou” who belongs to the small research institute “Rule Blue Integrated Life Science Laboratory” built on an island rich in marine resources, has been living an unflattering life, emotionally exhausted by sad events in his personal life and human troubles in the laboratory.
In the midst of this, he is summoned by “Misumi” who has been secretly conducting research in an underground area, and asked to participate in a project involving the mysterious “Morsomnia” a different space, as a change of pace.
“Morsomnia”is also related to “Arcana” an unidentified whale-like creature that I was previously involved in investigating. When I opened the blue door to the underground area, I found a life form with a will that called itself“Kuon” made of cells and pieces of meat taken from Arcana, waiting there.
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
⠀6 found this helpful
Absolutely beautiful piece of art and truly meaningful. BTW other reviews are wrong or outdated. There is a CG gallery.5 found this helpful
beautiful game. would love to know much more about the universe1 found this helpful
大好きな青に満たされたゲーム。 穏やかな時間が流れていくのに、散りばめられた謎に引き込まれる物語でした。 いつもはエンディング回収などは特に気にしないのですが、 このゲームに関してはすべて知りたい…というか、 何度でもプレイしたいなと思いました。1 found this helpful
とても素敵でした!この物語の都築楽しみます!
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