Single-player games like Kosmocean - The Endless Sea
Below are 8 single-player Steam games similar to Kosmocean - The Endless 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 Kosmocean - The Endless Sea page.
Ranked picks
- 1
Nia and The Abyss
Single-player alternative to Kosmocean - The Endless Sea — playable solo, no multiplayer required. Shares Adventure with Kosmocean - The Endless Sea.
Nia and The Abyss is an Underwater Creature Collector, Cleanup, Farming, and Ecosystem Sim. Clean pollution, cultivate plants, attract and evolve marine life. Restoring balance to a responsive ocean.
- 2
Plasticalypse - Submarine Adventures
Single-player alternative to Kosmocean - The Endless Sea — playable solo, no multiplayer required. Shares Adventure with Kosmocean - The Endless Sea.
A journey of the last ocean cleaner submarine that is tasked to restore the ecosystem of a dying earth. "Plasticalypse: TrashSub Adventures“
- 3
HydroTick: Water Reminder & Aquarium Manager
Single-player alternative to Kosmocean - The Endless Sea — playable solo, no multiplayer required.
Stay hydrated, relax, and build your dream aquarium! HydroTick reminds you to drink water at your chosen intervals, rewards you with coins, and lets you collect unique fish, rare decorations, and create a soothing aquatic world.
- 4
Dolphin Spirit: Ocean Mission
Single-player alternative to Kosmocean - The Endless Sea — playable solo, no multiplayer required. Shares Adventure with Kosmocean - The Endless Sea.
Explore the island of Maupiroa and discover its deep-sea secrets!
- 5
City Of Corals
Single-player alternative to Kosmocean - The Endless Sea — playable solo, no multiplayer required. Shares Adventure with Kosmocean - The Endless Sea.
Save the coral reef city in this cute tiny adventure game! Meet the colourful residents of this underwater city, explore the streets, befriend different species of fish and help them restore the corals to their former glory!
- 6
Biolum
Single-player alternative to Kosmocean - The Endless Sea — playable solo, no multiplayer required. Shares Adventure with Kosmocean - The Endless Sea.
Biolum is a 30min VR sci-fi narrative experience. Dive to uncharted depths of the ocean and discover a beautiful world of bioluminescent creatures. But all is not what it seems. What lies beneath the surface?
- 7
Botanicula
Single-player alternative to Kosmocean - The Endless Sea — playable solo, no multiplayer required. Shares Adventure with Kosmocean - The Endless Sea.
Humor-filled indie adventure game created by the makers of Machinarium and Samorost.
- 8
Beyond Blue
Single-player alternative to Kosmocean - The Endless Sea — playable solo, no multiplayer required. Shares Adventure with Kosmocean - The Endless Sea.
Beyond Blue is a single-player narrative adventure that takes you deep into our planet’s beating blue heart. Explore the awesome wonder and unbounded mystery that exists within the world’s ocean.