There's Nothing Down There
There's Nothing Down There is a short undersea horror exploration game.
84% of 439 Steam reviews are positive$2
Games like O2
Remember how tense and scary O2 felt at its best? These games could fill that gap nicely.
Dark of the Depths
A first-person deep sea exploration game. Use only a torch to navigate through rusted structures, encountering both dangerous and harmless sea creatures. Uncover the mysteries of the trench, and experience the phobia-inducing atmosphere of the ocean floor.
Tense, Scary, Atmospheric
71% of 17 Steam reviews are positive$4.99The Oily Depths
Operate an oil-drilling submarine while taking instructions from a mysterious voice. Fail your quota, and they’ll cut your oxygen. This is deep-sea horror. Obey or drown.
Tense, Scary, Atmospheric
84% of 111 Steam reviews are positive$2.99SUBMERSIBLE
1st person, Singleplayer, Ocean exploration, Horror game
Tense, Scary, Atmospheric
80% of 10 Steam reviews are positive$8.99Ocean Pressure
Ocean Pressure is a singleplayer game where you as an old scientist piloting your handmade submarine in the bottom of the ocean. Your mission is explore the ocean and collect required data with help of your submarine.
Tense, Scary, Atmospheric
59% of 27 Steam reviews are positive$2.99RebreatheR
Underwater, you're alone. Or almost alone. You're a diver doing routine work: cleaning the seabed, collecting waste, fixing pipes. But deep down there's always something wrong. Explore, repair, survive — and try not to lose your mind.
Tense, Scary, Atmospheric
38% of 8 Steam reviews are positive$7.99Deep Diving Simulator
Submerge yourself in one of the most immersive diving simulators to date. Gather your gear, choose your diving spot and discover what lies beneath the surface as you venture deep into the unknown.
Atmospheric, Mysterious
63% of 100 Steam reviews are positivePlayers online now: 1$19.99Subnautica
You crash-land in a life pod on an alien ocean planet, with hunger, thirst, and oxygen to watch. Gather fish and minerals, craft diving gear and small subs, build a seafloor base, and push from bright coral shallows toward trenches, lava fields, and caves to find a way off the planet.
Tense, Scary, Atmospheric
97% of 344,232 Steam reviews are positivePlayers online now: 3,928$29.99Deep Drift Signal Below
Dive into a beautiful yet deadly pixel deep sea and track unknown signals from the abyss. Manage oxygen, pressure, currents, and creatures while exploring. Capture life with a harpoon, find relics and chests, upgrade gear, and face hidden giants. The deeper you go, the greater the risk.
Tense, Scary, Atmospheric
100% of 6 Steam reviews are positiveFreeThe Trench
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?
Tense, Scary, Atmospheric
85% of 161 Steam reviews are positive$3.99There's Nothing Down There
There's Nothing Down There is a short undersea horror exploration game. Descend into a sinkhole at the bottom of the ocean and discover the remains of a lost, yet not dead, civilization. Now available in VR!
Tense, Scary, Atmospheric
84% of 439 Steam reviews are positive$2Submersed 2 - The Hive
SUBMERSED 2 - THE HIVE is a first-person science-fiction horror game, set in the harrowing depths of the Atlantic Ocean.Face the horror of being submerged at the bottom of the ocean.
Tense, Scary, Atmospheric
67% of 6 Steam reviews are positivePlayers online now: 1$19.99DIVE or DIE - Children of Rain
Black rain is falling and the Flood is coming. Lead the last survivors, send divers into a cursed abyss, and manage oxygen, sanity and hope while an angry sea god watches. A dark underwater mix of survival, camp management and dread, where every descent is a gamble and sacrifice is part of the plan.
Tense, Scary, Atmospheric
91% of 1,373 Steam reviews are positivePlayers online now: 21$17.99
Cheaper than O2
Submergent
Explore and navigate an underwater cave in your submarine.
65% of 17 Steam reviews are positive$1.99
The Dive
Linear underwater horror game about a search dive that quickly turns into fight for survival after an encounter with hellish creature.
54% of 69 Steam reviews are positive$0.49
Soobmarinno
Explore the depths of the ocean filled with dangerous inhabitants.
77% of 13 Steam reviews are positive$0.49
Buried
You wake up buried alive. You are running out of oxygen and you can't remember how you got here.
75% of 360 Steam reviews are positive$1.99
Dark Sea
When the research team from the classified Soviet organization known as O.D.I.S.E.A. went radio silent during an expedition deep beneath the Earth…
100% of 7 Steam reviews are positive$0.99
They Breathe
They Breathe is a short journey into the depths of a forest filled with water.
87% of 976 Steam reviews are positive$1.99
Challenger's Sleep
Challenger's Sleep is a deep sea Vertical Scroller that pulls you down from the bright Sunlight Zone and into the Sohm Abyssal Plain - and even…
100% of 4 Steam reviews are positive$0.99
AquaHero
It seems that something strange has been happening at the bottom of the ocean for some time. It would be good to check!
40% of 5 Steam reviews are positive$0.49
Don't Sleep With The Fishes
A hand-drawn survival horror where you fish for answers by day and ration your hope by night, with endings that rarely turn out kind.
95% of 887 Steam reviews are positivePlayers online now: 27$1.99
Subterene
Bore deep below the earth's surface in your all-terrain mining vehicle.
75% of 8 Steam reviews are positive$0.99
Bounty Hunter: Ocean Diver
Take to the depths of the deepest oceans in search for the Prime fish in this hidden object game, every mission you'll be assigned various fish to…
0% of 2 Steam reviews are positive$1.99
Hidden gems like O2
DIVE or DIE - Children of Rain
Send divers down into a cursed abyss and keep the last survivors breathing, sane and hopeful as the Flood rises.
91% of 1,373 Steam reviews are positivePlayers online now: 21$17.99
There's Nothing Down There
There's Nothing Down There is a short undersea horror exploration game.
84% of 439 Steam reviews are positive$2
The Oily Depths
Operate an oil-drilling submarine while taking instructions from a mysterious voice. Fail your quota, and they’ll cut your oxygen.
84% of 111 Steam reviews are positive$2.99
The Trench
As captain of the Pandora sub, you must explore the Trench and retrieve data from the Neptune wreckage.
85% of 161 Steam reviews are positive$3.99
Beyond Blue
You join a deep-sea research team, tracking whales and scanning sea life across eight peaceful dives.
88% of 1,058 Steam reviews are positivePlayers online now: 5$19.99
Iron Lung
Pilot a rusty one-man submarine through an ocean of blood on an alien moon.
92% of 10,309 Steam reviews are positivePlayers online now: 12$7.99
Abyss of Neptune
Abyss of Neptune is a survival horror game set in the deep seas of the Bermuda Triangle.
69% of 233 Steam reviews are positiveFree
Narcosis
Stranded on the seafloor in a half-ton dive suit, you fight for the surface before your oxygen and your sanity run out.
75% of 1,212 Steam reviews are positive$14.99
Deep Diving Simulator
Submerge yourself in one of the most immersive diving simulators to date.
63% of 100 Steam reviews are positivePlayers online now: 1$19.99
Subnautica
You crash-land in a life pod on an alien ocean planet, with hunger, thirst, and oxygen to watch.
97% of 344,232 Steam reviews are positivePlayers online now: 3,928$29.99
Depth Hunter 2: Deep Dive
Depth Hunter 2 is an underwater hunting game, allowing the complete experience of the spearfishing extreme sport!
74% of 199 Steam reviews are positive$9.99
20,000 Miles Under the Sea
Become a fearless underwater explorer and reach the bottom of The Mariana Trench to win 20,000* REAL DOLLARS!
39% of 159 Steam reviews are positiveFree
Newest games like O2
Escape: Immersion
Escape: Immersion is a cinematic 2.5D horror adventure set inside a collapsing underwater military base.
100% of 52 Steam reviews are positive$9.99
Depth Diver
Dive into an unforgiving underwater nightmare alone or with friends! Complete deadly missions for the Union in the terrifying depths of Gornak.
100% of 3 Steam reviews are positive$9.99
Deepclaim
Pilot a mining sub into the crushing deep. Drill down, haul treasure up, and race the air in your tanks — one more gem, or turn back?
100% of 2 Steam reviews are positive$6.99
Dark of the Depths
A first-person deep sea exploration game. Use only a torch to navigate through rusted structures, encountering both dangerous and harmless sea…
71% of 17 Steam reviews are positive$4.99
DIVE or DIE - Children of Rain
Send divers down into a cursed abyss and keep the last survivors breathing, sane and hopeful as the Flood rises.
91% of 1,373 Steam reviews are positivePlayers online now: 21$17.99
The Abyss Below
The year is 1997. Pilot a small submersible into the depths of the Pacific to investigate a massive sonar anomaly.
82% of 60 Steam reviews are positive$4.99
Last Dive: Echo Trench
Descend from the fragile safety of your diving bell into a dark shipwreck zone, search for sunken gold, survive escalating anomalies, and uncover…
76% of 29 Steam reviews are positive$5.99
Deep Drift Signal Below
Dive into a beautiful yet deadly pixel deep sea and track unknown signals from the abyss.
100% of 6 Steam reviews are positiveFree
Underwater
Discover the true meaning of isolation in Underwater, a survival horror game set in an atmosphere of constant dread, darkness, and crushing pressure.
100% of 2 Steam reviews are positive$9.99
There's Nothing Down There
There's Nothing Down There is a short undersea horror exploration game.
84% of 439 Steam reviews are positive$2
Flash Diving
Short horror game where you survey the descent of a capsule through a hole in the middle of an ocean, with only 4 lights and your ears to ensure…
72% of 36 Steam reviews are positiveFree
The Oily Depths
Operate an oil-drilling submarine while taking instructions from a mysterious voice. Fail your quota, and they’ll cut your oxygen.
84% of 111 Steam reviews are positive$2.99