Dark Sea: Pilot a Soviet Submarine into the Mysterious Deep

8/26/2026, 3:34:11 PM

Release date: 10/1/2025

Tags: #adventure #simulation #singleplayer #underwater #mystery #exploration #immersive-sim #3d

User Reviews

Score: 80%Positive
Review Count: 10 reviews
Fetched At: 8/26/2026, 3:34:11 PM

Reference prices

Japan

¥ 135 (JPY)

Steam JP

$0.99 (USD)

Steam

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: ¥ 135
Global Price: $0.99
Price in Your Region: ¥ 135Prices as Steam lists them per country. What you are actually charged depends on your Steam account settings.Regional prices checked: 30 Aug 2026
Sale Status: Regular pricing
Price Checked At: 8/26/2026, 3:30:44 PM

Key highlight

Pilot the Soviet submarine P27 as a mechanic to uncover the mystery of a missing research team in the deep sea. A spooky underwater adventure awaits.

Who this is for

Recommended for players who want to immerse themselves in deep-sea mysteries and the atmosphere of the Soviet era.

Details

Overview

Dark Sea plunges players into a chilling underwater adventure, tasking them with piloting the aging Soviet research submarine, the P27. As Mr. Sidorov, a mechanic for the enigmatic O.D.I.S.EA. Group, your mission is to locate a missing research team. The game blends elements of mystery, exploration, and simulation as you navigate the deep sea.

Highlights

Embark on a spooky adventure as a mechanic for a secret Soviet research group.
Pilot the rusty Soviet research submarine P27 into deep sea fissures known as Fractures.
Investigate the disappearance of the ODISEA Group's research team.

Who It's For

This game is for players who enjoy atmospheric exploration, mystery narratives, and simulation gameplay with a unique historical setting. If you're drawn to the unknown depths of the ocean and enjoy uncovering secrets, Dark Sea offers an immersive experience.

Game Info

Developed and published by DarkSignal Studios, Dark Sea is a single-player simulation and adventure game released on October 1, 2025. It features underwater exploration and a compelling mystery narrative. The game is available in English and supports Steam Achievements.