Single-player games like Ocean Keeper: Dome Survival
Below are 12 single-player Steam games similar to Ocean Keeper: Dome Survival, 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 Ocean Keeper: Dome Survival page.
Ranked picks
- 1

Sunken Veins
Single-player alternative to Ocean Keeper: Dome Survival — playable solo, no multiplayer required. Shares Action and Indie with Ocean Keeper: Dome Survival.
Sunken Veins is a resource management horror game set in a deep sea mining facility. You collect resources deposited by an underwater drill, avoid adaptive monsters and drain away overwhelming floods of water caused from mining operations.
- 2

Submeris
Single-player alternative to Ocean Keeper: Dome Survival — playable solo, no multiplayer required. Shares Action and Indie with Ocean Keeper: Dome Survival.
Submeris is an underwater mining adventure set beneath a mysterious island. Dig, upgrade your gear, survive dangerous depths, and uncover the legendary treasure hidden far below the ocean floor!
- 3

Insiders
Single-player alternative to Ocean Keeper: Dome Survival — playable solo, no multiplayer required. Shares Action and Indie with Ocean Keeper: Dome Survival.
Welcome to the dangerous micro world hidden inside the human body. Pilot an advanced microship through the bloodstream, brain and kidneys. Mine resources, fight microbes, craft ship modules and weapons, build bases, discover new microorganisms and find a cure for cancer. Don’t get eaten!
- 4

Metal Bringer
Single-player alternative to Ocean Keeper: Dome Survival — playable solo, no multiplayer required. Shares Action and Indie with Ocean Keeper: Dome Survival.
In this roguelike action-adventure, control humanoid "Labor" and giant "Arms" to uncover the mysteries of the world. Create fully-customizable robots, strengthen them, and take down hordes of enemies!
- 5

CryoFall
Single-player alternative to Ocean Keeper: Dome Survival — playable solo, no multiplayer required. Shares Action and Indie with Ocean Keeper: Dome Survival.
CryoFall is a sci-fi colony simulation survival game set on a forgotten planet in a distant future. Master technology, agriculture, trading, industry, cybernetics, exploration, and more!
- 6

Wall World
Single-player alternative to Ocean Keeper: Dome Survival — playable solo, no multiplayer required. Shares Action and Indie with Ocean Keeper: Dome Survival.
Explore the mysterious Wall World on your giant robospider: mine for valuable resources, upgrade your equipment to fight off hordes of monsters, and discover exotic biomes in-between attacks. Will you be able to survive and learn the secrets of the Wall World?
- 7

Museum No.9
Single-player alternative to Ocean Keeper: Dome Survival — playable solo, no multiplayer required. Shares Indie and Adventure with Ocean Keeper: Dome Survival.
Massive artifact collection! Build your museum with extreme freedom! Visitor revenue depends on your route design, and whether you can achieve perfect profits is entirely up to you! Enjoy light rogue-style adventure exploration, and use different skill combinations to battle monsters every time!
- 8

Galactic Mining Corp
Single-player alternative to Ocean Keeper: Dome Survival — playable solo, no multiplayer required. Shares Action and Indie with Ocean Keeper: Dome Survival.
Galactic Mining Corp is a unique rogue-lite, action game with crafting and base building mechanics. Head into uncharted space and discover a universe of locations to exploit for riches! Use your profits to expand your HQ, hire a crazy work force, obtain new drill components and upgrade everything.
- 9

Vampire Survivors
Single-player alternative to Ocean Keeper: Dome Survival — playable solo, no multiplayer required. Shares Action and Indie with Ocean Keeper: Dome Survival.
Mow down thousands of night creatures and survive until dawn! Vampire Survivors is a gothic horror casual game with rogue-lite elements, where your choices can allow you to quickly snowball against the hundreds of monsters that get thrown at you. Be the bullet hell!
- 10

Dome Keeper
Single-player alternative to Ocean Keeper: Dome Survival — playable solo, no multiplayer required. Shares Action and Indie with Ocean Keeper: Dome Survival.
Defend against waves of alien monsters in this unique roguelike action miner. Dig for resources, collect useful gadgets, and upgrade equipment to increase odds of survival – just hurry back before your dome is destroyed!
- 11

Wall World 2
Single-player alternative to Ocean Keeper: Dome Survival — playable solo, no multiplayer required. Shares Action and Indie with Ocean Keeper: Dome Survival.
The adventure in the mysterious world of the Wall continues! Pilot your robospider into its depths, uncover lost artifacts and technologies, upgrade your exosuit and spider, and battle the horrors lurking in the dark. Unravel the mysteries buried in the depths of the Wall!
- 12

Last Pirates: Die Together
Single-player alternative to Ocean Keeper: Dome Survival — playable solo, no multiplayer required. Shares Action with Ocean Keeper: Dome Survival.
An online co-op horror experience for up to 4 players. Use your elastic arms to grab valuable loot for your captain. But be careful, danger lurks around every corner trying to take your booty!