Hidden Deep

2D sci-fi action commanding a rescue team beneath the seafloor

Cogwheel Software · Published by Daedalic Entertainment · Released Jan 24, 2022 · Early Access

Reviews: Mostly Positive; 76% of 5,099
Recent reviews: Mixed; 46% of 26 in 30 days
Playing now: 9; right now
Steam Deck: Playable
Last update: 8 months ago; Jan 11, 2026

What is Hidden Deep?

A side-view action and exploration game set in caves and a research facility beneath the ocean floor. After a research team loses contact, you lead a rescue mission through handcrafted campaign levels, controlling crew members or giving them orders. You use grappling hooks, scanners, drones, and weapons to navigate hazards and fight alien creatures. A separate challenge mode has randomized missions for solo or co-op play.

For you if...

+you like coordinating a team to solve exploration problems
+you enjoy dark sci-fi settings and alien threats
+you like difficult platforming alongside puzzles and combat

Not for you if...

−you want forgiving movement and little risk from falls
−you want to play the story campaign cooperatively

What players say

76% of 5,099 reviews are positive · 46% of 26 in the last 30 days

Players praise the atmosphere and exploration mechanics. Recent reviews frequently report co-op bugs and crashes; players also complain about awkward controls, repetitive levels, and slow updates.

Screenshots and trailer

Hidden Deep system requirements

As published by the developer.

Minimum

OS: MS Windows 7, 8, 10
Processor: Intel Core2Duo E7400
Graphics: Intel HD Graphics 3000
Memory: 4 GB RAM
Storage: 1 GB available space
DirectX: Version 9.0c

PC version details

DRM, required accounts, controller support and Steam features.

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 14
Steam features: Cloud saves, Family Sharing, Trading cards

Steam Deck: Playable

Some in-game text is small and may be hard to read
All functionality is accessible with the default controller configuration
Shows Steam Deck controller icons
Default graphics settings perform well on Steam Deck
External controllers are not supported for the primary player

Multiplayer and co-op

Languages

Full audio: English. Text only: French, Italian, German, Spanish - Spain, Japanese, Korean, Portuguese - Brazil, Russian, Simplified Chinese, Traditional Chinese, Turkish, Polish.