
Screenshots

Watch trailer on Steam ↗Whalefall
Matriarch Games · Published by Matriarch Games
Mostly Positive — 77% positive (22 reviews)
Last updated 28 Sept 2026
A PSX-style survival horror game where you run, hide, and fight through a deep-sea prison overrun by cloning monsters that regenerate from severed limbs, forcing you to carefully choose when violence is worth the risk.
Action, Adventure, Indie, Free To Play · 2026 · More free games
About this game
A PSX-style survival horror experience set deep beneath the ocean.
This Game is a DEMO at this time.
Far below the surface lies a corporate-run industrial prison, hidden in the darkness of the deep sea. Built to conduct experiments far from public scrutiny, the facility has become something far worse than just a prison.
Now the halls are overrun with grotesque cloning organisms that multiply from severed limbs. Every violent encounter risks creating more of them.
To escape with any chance of survival, you must run, hide, and fight your way through the collapsing substation, navigating locked cell blocks, flooded corridors, research labs, and industrial maintenance tunnels. But brute force won’t save you here. The creatures grow stronger with every mistake, and Tyde Civic Corporation is determined to ensure its secrets never reach the surface.
As the facility falls deeper into chaos, you’ll need to solve environmental puzzles, evade relentless enemies, and uncover the truth behind the prison’s experiments. Every path upward brings you closer to freedom, and closer to the secrets Tyde Civic buried beneath the sea.
Ultimately, to escape the prison and survive Tyde Civic’s grotesque creations,
there's nowhere to go except up.
Gameplay Features
PSX-Style Survival Horror
Experience a retro-inspired horror game with low-poly visuals, gritty textures, and an oppressive atmosphere inspired by late-90s horror classics.
Enemies That Multiply
The creatures inside the facility reproduce from severed limbs. Cut off an arm and it does not die. It will grow into another body, leaving the original creature alive. Every fight risks turning one enemy into many.
Run, Hide, or Fight
Not every encounter should be fought. Choose carefully when to confront enemies and when to evade them as the prison becomes increasingly overrun.
Metroidvania Style Exploration
Unlock tools and skills to revisit previously inaccessible areas, uncovering secrets as you explore the labyrinthine facility.
Explore the Deep-Sea Facility
Navigate a sprawling underwater prison complex, from flooded corridors and cell blocks to laboratories and industrial tunnels barely holding back the ocean.
Corporate Secrets
Uncover the disturbing truth behind Tyde Civic Corporation and the experiments buried beneath the sea.
System Requirements
Will my PC run this? →Minimum
- OS: Windows 10
- Processor: Intel Core i5-4460 / AMD FX-8320
- Memory: 4 GB RAM
- Graphics: GeForce GTX 750 Ti / Radeon R7 260
- DirectX: Version 11
- Storage: 2 GB available space
Supported Languages
*languages with full audio support
Latest news
Patch NotesOfficial
Windows Version Hotfix
Previous patch caused cutscenes in the windows version to not play, resulting in a solid white screen during the cutscene duration. This has now been fixed. Mac version is unaffected.Read full article on Community Announcements (headlessinteractive)Patch NotesOfficial
MacOS Version Uploaded
- macOS build is live!Read full article on Community Announcements (headlessinteractive)Patch NotesOfficial
User Sensitivity Patch
- user sensitivity can now be adjustedRead full article on Community Announcements (headlessinteractive)






