SOMNIUS: Chaotic Co-op Extraction in Collapsing Dreams

9/23/2026, 12:05:01 AM (JST)

Release date: 9/22/2026

Tags: #co-op #physics #action #first-person #multiplayer #procedural-generation #3d-platformer #exploration

User Reviews

Steam rating: Steam positive 100% (6 reviews) Few reviews, for reference only
Fetched At: 10/11/2026, 6:06:06 AM (JST)

Reference prices

Japan

¥ 1,050 (JPY)

Steam JP

$7.99 (USD)

Steam Global

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Live Store Snapshot

Body text may reflect the state at publication time. For the latest sale, price, and review changes, prioritize the live price panel, review panel, and the Steam store listing.

Japan Price: ¥ 1,050
Global Price: $7.99
Price in Your Region: ¥1,050Prices as Steam lists them per country. What you are actually charged depends on your Steam account settings.Regional prices checked: 13 Nov 2026
Sale Status: Regular pricing
Price Checked At: 11/13/2026, 2:09:48 AM (JST)

The price snapshot and review snapshot differ by about 788 hours. Because they are not always refreshed at the same time, confirm the latest Steam listing before making a purchase decision.

Key highlight

SOMNIUS is a chaotic co-op extraction game for up to 6 players, set in collapsing dreams. Players must rescue the Dreamer before the dream world burns away, utilizing physics-based gameplay and procedural generation.

Who this is for

For those seeking a thrilling cooperative experience, SOMNIUS offers a unique challenge. Gather your friends and strategize your survival within collapsing dreamscapes.

Details

Overview

SOMNIUS plunges players into a frantic, cooperative extraction experience where up to six individuals must navigate the treacherous landscape of a collapsing dream. The core objective is to locate and rescue the 'Dreamer' before the entire dreamscape succumbs to ruin. This involves breaking seals, freeing the target, and then physically moving them to the extraction portal. The game emphasizes teamwork and quick thinking as players contend with the dream's instability and whatever dangers lurk within.

Highlights

Chaotic Co-op Extraction: Team up with up to 6 players in a unique extraction game set within unstable dream environments.
Procedural Generation: Each dream presents a new challenge with procedurally generated elements, ensuring replayability and unpredictable encounters.
Physics-Based Gameplay: Expect a dynamic and often unpredictable experience thanks to the game's physics engine, influencing how players interact with the environment and the Dreamer.

Who It's For

SOMNIUS is designed for players who enjoy cooperative challenges, fast-paced action, and games with a strong emphasis on physics-based interactions. If you're looking for a chaotic multiplayer experience where communication and quick reflexes are key to survival, this game should be on your radar. Fans of extraction shooters and unique co-op mechanics will find a lot to love here.

Game Info

Developed and published by STFGames, SOMNIUS offers a first-person perspective and supports online co-op gameplay. The game was released on September 22, 2026, and features procedural generation to keep the dreamscapes fresh. It supports a wide range of languages, including English, Japanese, and Simplified Chinese, making it accessible to a global audience. The game also includes Steam Achievements for dedicated players.