Top similar games like The Sirena Expedition:

You are an employee of U.D.E. Your mission is to explore the ocean depths, investigate ancient artifacts, and... save your own skin. Survive, uncover the corporation's secrets, and find out what lies hidden in the depths.

A submarine touring the Titanic has gone missing. As part of the coast guard, you have been called in to locate and rescue the crew before their oxygen runs out.

As captain of the Pandora sub, you must explore the Trench and retrieve data from the Neptune wreckage. But beware - the trench is home to unimaginable horrors that will test your courage. Can you survive the terrors of the deep and complete your mission, or will you become the next victim?

Awaken brings Lovecraftian horror to the beloved 2D side scroller genre. Make your way through the strange forest while encountering inexcplicable forces and try to keep your sanity as you piece together the mystery of your sister's disappearance.

Oxenfree is a supernatural thriller about a group of friends who unwittingly open a ghostly rift. You are Alex, and you’ve just brought your new stepbrother Jonas to an overnight island party gone horribly wrong.

Narin: The Orange Room is a third-person adventure horror game. Play as Narin, a young girl whose sister mysteriously disappeared. Help her find her sister in the twilight dimension, solve the mystery, and uncover the truth.

Devi, a 27-year-old young woman, books a late-night massage at Ahola Spa & Reflexology—the only spa that is still open.. What should have been a relaxing escape turns into a lingering nightmare…

Two worlds, one nightmare. Explore a gruesome orphanage, solve puzzles related to an inexplicable phenomenon, and dive into the depths of dreams to uncover otherworldly horrors. An Abyss of Dreams is a cosmic horror point-and-click game set during the Great Darkness.

Sound is your only hope for survival in this first-person psychological horror game. Investigate the mysteries of an apartment block in 1960s America terrorized by a cosmic horror, as you try to save your lost mentor… and yourself.

The Living Shadows is a survival horror game where you have to take the role of a woman named Amelia and go through the world of the dead in order to save your sister and try to return to the real world.

You are lost in a vast and eerie labyrinth filled with pools and puzzles. Gather items to activate various mechanisms as you explore further. Face various unknown entities that lurk within. Unravel the mysteries of the labyrinth and your own identity to find your way out. Inspired by poolcore.

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.

DreadOut is a third person supernatural horror game where you play as Linda, a high school student trapped in an old abandoned town. Equipped with her trusty smart-phone, she will battle against terrifying encounters and solve mysterious puzzles which will ultimately determine her fate.

Moth Ma'am is a 2D pixel art platformer meant to eventually be beatable in a single sitting, like old Mega Man or Sonic games. Jump, flap, shoot, swim, air drill, and ride through 8 stages of cryptid mayhem. Try to earn a S rank on every stage.

Aqua Catholicism; Explore Man's Original Sin Under The Sea

Your bestie seems to be hiding something. There's something about your world that seems odd as well, like it has...secrets. Dive into the Cthulhu Mythos universe of this horror game and witness a "friendship" that rewrites the world.

A first-person survival horror with a cosmic twist, where you must blindly navigate a decayed historic manor swarming with warped children with only your vague memories and peripheral senses to guide you. Will your sanity hold? Or will blind hope turn to blind despair?

What hides in the depths of the forest?!

'Crushing Depths' is a first-person horror game set deep down on the ocean floor, you will take control of an underwater drone tasked with locating points of interest using 3D spatial sound and once found scan them to build a story, but be on careful lookout for anything that may lurk down there!

The Fractured Shimmer is a 2.5D pixel-art survival horror adventure where you follow Eddy, a journalist investigating a string of unsettling murder cases.

IORETIN is a survival horror game inspired by PS2 classics. You are a young fisherman who must save your brother trapped at sea while facing abyssal monsters. Explore a city inspired by a real one and fight for survival using melee weapons.

EX VITRO is a dark sci-fi 2D platformer where you delve into the ruins of a military research facility and discover the horrors within. Whether machine, creature, or something else entirely, you’ll face the violent legacy of the last survivors of humanity.

You play as a student named Lisa, who has just moved in with her university friend. But instead of a carefree student life, Lisa faces events full of despair and fear when she is left alone in her apartment number 8...

The file for a lost and unfinished platformer from 1999 about collecting souls for the vacationing Grim Reaper has resurfaced online.

When lost in the Depths, the only way to go is up. You will Escape- one way or another.

This stand-alone prologue puts you in the tiny shoes of Grace Saunders – an 11-year-old girl delivering a letter, when things go horribly wrong… Experience the unique 1920s horror atmosphere of Alone in the Dark and prepare for the terror that awaits in Derceto Manor

A compilation of two slow-paced, cosmic horror walking simulators, to be completed in under an hour. Please makes you maintain a power station and ignore the noises from the main engine, while Please Follow has you explore the trenches of a losing war, exposing your mind to visions of another world.