Single-player games like Sea under the sea under the sea
Below are 9 single-player Steam games similar to Sea under the sea under the sea, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Sea under the sea under the sea page.
Ranked picks
- 1
Submergent
Single-player alternative to Sea under the sea under the sea — playable solo, no multiplayer required.
Explore and navigate an underwater cave in your submarine.
- 2
Iron Lung
Single-player alternative to Sea under the sea under the sea — playable solo, no multiplayer required.
A short horror game where you pilot a tiny submarine through an ocean of blood on an alien moon.
- 3
Sonar Scout
Single-player alternative to Sea under the sea under the sea — playable solo, no multiplayer required.
Pilot your submarine to activate and reestablish a network of beacons while carefully utilizing your sonar to navigate the low-visibility depths of the ocean.
- 4
PROXIMATE
Single-player alternative to Sea under the sea under the sea — playable solo, no multiplayer required.
Congratulations, contractor! You've been approved to trial our cutting-edge AI visor. Use it to explore the Neuras lab and recover the staff's research. Your visor is safe, reliable, and up to 99% accurate. Just don't ask why the "ketchup" in the corner makes such a horrible crunching sound.
- 5
KURSK
Single-player alternative to Sea under the sea under the sea — playable solo, no multiplayer required. Shares Action with Sea under the sea under the sea.
KURSK is the first ever adventure and documentary video game inspired by real events. You assume the role of a spy who finds way on the Russian nuclear submarine K-141 Kursk. While trying to complete your mission, you become witness to the dramatic events which shook the world at that time.
- 6
Among the Sleep - Enhanced Edition
Single-player alternative to Sea under the sea under the sea — playable solo, no multiplayer required. Shares Action with Sea under the sea under the sea.
Among the Sleep: Enhanced Edition is a new and improved version of the award winning first person horror adventure. In the game you play as a small child trapped in a weird nightmare where you go looking for your mom.
- 7
The Lost Souls
Single-player alternative to Sea under the sea under the sea — playable solo, no multiplayer required.
What does it feel like to find yourself in hell? You don't feel the wind, you don't see the sun. No more hearing child's laughter. No memory of those who once were your friends and family.
- 8
Homesick
Single-player alternative to Sea under the sea under the sea — playable solo, no multiplayer required.
Explore an abandoned building, encountering puzzles and clues to discover what happened, as you try to escape in both your nightmares and the waking world. Be immersed in the hauntingly beautiful 3D atmosphere in this puzzle exploration mystery game.
- 9
Dad left me in the car
Single-player alternative to Sea under the sea under the sea — playable solo, no multiplayer required. Shares Action with Sea under the sea under the sea.
Survival horror game about a girl trapped in a car