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About Hidden Deep
Hidden Deep is a 2D sci‑fi action and exploration title set in a mining and research complex more than a mile beneath the ocean floor. You command the second expedition, tasked with investigating a communication loss after 681 days and rescuing any survivors while confronting unknown horrors.
The game mixes a dark narrative with a toolbox that includes grappling hooks, scanners, drones, weapons and heavy machinery. Play solo or with a partner in local co‑op, and later in online co‑op, as you navigate hand‑crafted levels and randomized challenges.
01 / THE GUIDE
Narrative premise
A research team detected strange anomalies and launched an expedition. After 681 days the team’s contact stops, prompting a second group to descend and investigate the mysterious phenomenon.
The story draws inspiration from 80’s and 90’s sci‑fi horror classics such as Aliens, The Thing and Half‑Life, creating a rich dark atmosphere throughout the hand‑crafted levels.
- Compare the tone to classic sci‑fi horror films for added immersion.
- Notice the specific timeline (681 days) to appreciate the narrative pacing.
02 / THE GUIDE
Equipment toolkit
Players can operate grappling hooks, scanners, drones, weapons and heavy machinery. These tools are required to traverse sub‑oceanic caves and to confront the alien threats that inhabit them.
Coordinating the right equipment with teammate orders enables task completion and progression through environmental obstacles.
- Test each tool in a safe area to understand its primary function.
- Combine scanning with drone deployment for safer reconnaissance.
03 / THE GUIDE
Game modes
The single‑player campaign offers hand‑crafted levels that total over 20 hours of story content during Early Access. This mode follows a linear narrative focused on uncovering the facility’s secrets.
Challenge Mode provides randomized levels for solo or local co‑op play, letting players tackle varied mission goals and extend replayability beyond the main story.
- Finish the story campaign first, then switch to Challenge Mode for fresh scenarios.
- Use the randomness to experiment with different equipment combinations.
04 / THE GUIDE
Co‑op features
Hidden Deep supports local co‑op and Remote Play Together, allowing players to coordinate tasks, share equipment and issue orders. Online co‑op will be added later in Early Access.
Co‑op emphasizes direct control of teammates or giving orders, fostering teamwork against the deep’s alien horrors.
- Communicate clearly when assigning orders to avoid duplicated actions.
- Remote Play Together can be used when a second local controller is unavailable.
05 / THE GUIDE
Steam integration
The title runs on Windows and includes Steam achievements, trading cards, partial controller support, Steam Cloud and Family Sharing. These features augment the experience without altering core gameplay.
Partial controller support indicates that controllers can be used, though specific input mappings are not detailed in the source.
- Enable Steam Cloud to keep progress across multiple installations.
- Check the achievement list for optional challenges that match your play style.
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