PLAYISM is pleased to announce that the original soundtrack for Gnosia, the single-player social deduction game by indie developer Petit Depotto has been released on the Steam Store as of December 5, 2025.
(Also be sure to catch the animated adaptation currently airing as a TV anime and streaming on select platforms)

GNOSIA Original Soundtrack List

1　call of ender　4：17
2　in the unknown ship　2：22
3　voting　3：26
4　suspicion　2：36
5　red alert　2：14
6　remind me　2：01
7　ULULO　3：48
8　enjoying my routine　2：47
9　flying yellow cucumber　1：20
10　back street cats　1：55
11　a ray of hope　3：13
12　the silver key　3：11
13　a sip of wonder　2：58
14　for your fun　1：38
15　ice prison　3：14
16　we all broken　1：40
17　ASTER　3：34
18　shooting stars go away　2：10
19　eyes on you　2：47
20　this is a lie　3：01
21　world of probability　1：40
22　the truth　1：08
23　the last march of us　3：08
24　blue sky, blue star　5：59

Credits

Artist: Various Artists
Composer: Q flavor
Others: Vocal and Lyricist for Track 24 by Kayan

A 10% launch discount will be available for the first 14 days.
In addition, the main game GNOSIA is currently 30% off until December 13.
When purchased together as a bundle with the original soundtrack, an additional 10% discount will be applied as well so don’t miss this opportunity!

About the Game

You are on a spaceship drifting through space.

Among the crew are a mysterious and deadly threat known as the "Gnosia", who disguise themselves as humans while attacking and eliminating one crew member every night. The crew formulates a desperate plan for survival, in which the most suspicious among them will be put into "cold sleep" one by one, in an effort to rid the ship of Gnosia.

As the player, you can be on either side—human or Gnosia. as a human, your goal would be to find all of the Gnosia and vote to put them all into cold sleep. As a Gnosia, your goal would be to eliminate crew members every night, until the Gnosia outnumber the humans.

Each loop lasts around 15 minutes, and the story progresses as you repeatedly engage in rounds of "mafia-style" social deduction.

In GNOSIA, players and characters are assigned roles such as Crew Member or Gnosia at the beginning of each loop. Once assigned, the characters will start to automatically speak and act according to their roles.

With internal parameters such as personality traits, abilities, affinity, role, and trust toward others, every character develops distinct behaviors and discussion patterns, creating highly dynamic debates and ensuring the game remains enjoyable over many playthroughs.

Note: The game content is the same as the Nintendo Switch and Steam versions, with no additional new features.

Game Characteristics

GNOSIA isn't just a single-player werewolf game...

As a combination of the roleplaying, simulation, and visual novel genres, this game is a unique "roguelite visual novel" like no other.
Each loop is short and sweet, but the more you play, the more of the game will reveal itself to you.

▼ Uncover the Secrets of the Narrative over Multiple Playthroughs
The game starts when you find out that there are Gnosia hidden among the crew, and ends when you fulfill either the win or lose condition for your role.

As the player, you will have to repeat this process to discover the truth. What exactly are your enemy the Gnosia? Why do the occurences in this spaceship loop over and over again?

You will discover bits and pieces of information over many loops, and slowly but surely piece them all together to unravel the mystery behind it all in this masterful blend of gameplay and narrative.

▼ Play as Various Roles to Improve your Parameters
At first, your character isn't very good at much and will have a hard time controlling how the discussions go, often at the mercy of the majority.

However, as you go through more and more loops, your level will increase, letting you freely allocate points towards parameters such as charisma and logic. Eventually, you can become a key speaker in discussions, directly influencing conversations and swaying other characters' opinions.

▼ Colorful Characters and Infinite Possibilities
There are as many possibilities as there are players, and no two players will have the exact same journey. Your fellow crew members will be both your allies and foes in your mission to discover the secrets of the narrative, revealing drama and chemistry between different characters as they take on different roles.

Since the story and your personal stakes in the narrative are closely connected to the gameplay, the emotional ups and downs you will encounter throughout hit just that much harder when, for example, your ally suddenly betrays you and costs you the game. Enjoy and immerse yourself in a narrative that's unique to your playthrough.

Product Information

Steam Store Page

Title: GNOSIA Soundtrack
Developer: Petit Depotto
Publisher: PLAYISM
Genre: Original Soundtrack
Platform: Steam
Release Date: December 5, 2025
MSRP: $17.99 USD (tax incl)  *10% off at launch + 10% off with the bundle.

© Petit Depotto. Licensed to and published by Active Gaming Media Inc.