76%Strong matchSubterror
91%38091% positive reviews, Very Positive across 380 reviews·Horror · First-Person
—







A mysterious signal. A missing crew. And the one man trying to piece it all together. As Abe Douglas, dive deep into a fully underwater metroidvania to explore massive oceanic biomes, battle monstrous bosses, and piece together a mystery that threatens not only your crew, but your own sanity.

When The Baroness submarine goes dark while investigating a massive vibration deep in the ocean, Abe Douglas, the commander who assembled its crew, makes it his responsibility to find out what happened. As he plunges into the ocean, he has no idea that what he’ll uncover will not only threaten the lives of his crew, but his own sanity.
Discover the fate of each crew member of The Baroness and uncover the mystery of the signal coming from the ocean floor.
Explore beautiful coral reefs, sunken wrecks, underground magma lairs and much more in your journey to the darkest depths of the ocean.
Danger comes from every angle. Unlock a wide variety of weapons to help you battle monstrous bosses, survive tense set-pieces, and uncover secrets that expand the story and your chances of survival.
With full 360 degree movement, there are no double jumps or wall runs to help you under the ocean. Use a wide range of unique tools to uncover your environment, including tow lines that help you pull through heavy currents, and a sonar system that helps you navigate through pitch black darkness.
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
All matches
Finding similar games…
SubterrorShares Underwater · Submarine · Pixel Graphics , adds Online Co-Op91% · 380 positive reviews76%Strong match—
Murky DiversShares Underwater · Exploration · Psychological Horror , adds Funny87% · 3k positive reviews76%Strong match—
Hidden DeepShares Exploration · 2D · Mystery , adds Shooter77% · 4k positive reviews76%Strong match—
The Aquatic Adventure of the Last HumanShares Metroidvania · Underwater · Exploration , adds Post-apocalyptic73% · 425 positive reviews71%Strong match—
DIVE or DIE - Children of RainShares Underwater · Lovecraftian · Exploration , adds Post-apocalyptic91% · 1k positive reviews71%Strong match—
Sonar ShockShares Lovecraftian · Exploration · Submarine , adds FPS82% · 210 positive reviews74%Strong match—All matches
The best games like Depths of Sanity are Subterror, Murky Divers, Hidden Deep, The Aquatic Adventure of the Last Human, and DIVE or DIE - Children of Rain.
Match on: filter matches for Depths of Sanity by tag
Filters all matches
65%+Strong matches