IMHO.

Games like Subnautica

If Subnautica is your kind of game, the closest matches are Subnautica: Below Zero, No Man's Sky and The Forest — picked from the ranked list below. Reviewers single out its atmospheric, contemplative and immersive. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.

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About Subnautica: Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive.

2018IndieAdventure29.99 USDDeck VerifiedMetacritic 87Windows · macOSby Unknown Worlds Entertainment
Subnautica — Steam game cover
Players highlight
Alien world feels real in every detailCrafting progression is satisfying and balancedExploration always reveals something newAtmosphericContemplativeImmersive

Players who liked Subnautica also play

Steam players who put hours into Subnautica also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.

  1. Subnautica: Below Zero

    WHY THIS

    Shares an atmospheric mood with Subnautica.

    Top pick for Subnautica fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Subnautica.

    Dive into a freezing underwater adventure on an alien planet. Below Zero is set two years after the original Subnautica. Return to Planet 4546B to uncover the truth behind a deadly cover-up. Survive by building habitats, crafting tools, & diving deeper into the world of Subnautica.

    2021IndieAdventure29.99 USDDeck VerifiedSteam ↗
  2. No Man's Sky

    WHY THIS

    Shares base building and an atmospheric mood with Subnautica.

    Second-strongest match for Subnautica fans by collaborative filtering across millions of Steam libraries. Shares Adventure with Subnautica.

    No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.

    2016ActionAdventure59.99 USDDeck VerifiedSteam ↗
  3. The Forest

    WHY THIS

    Shares base building and an atmospheric mood with Subnautica.

    Third-strongest match for Subnautica fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Subnautica.

    As the lone survivor of a passenger jet crash, you find yourself in a mysterious forest battling to stay alive against a society of cannibalistic mutants. Build, explore, survive in this terrifying first person survival horror simulator.

    2018ActionIndieAdventure19.99 USDDeck PlayableSteam ↗
  4. Grounded

    WHY THIS

    Shares base building and an atmospheric mood with Subnautica.

    Ranked #4 for Subnautica fans by collaborative filtering across millions of Steam libraries. Shares Adventure with Subnautica.

    The world is a vast, beautiful and dangerous place – especially when you have been shrunk to the size of an ant. Can you thrive alongside the hordes of giant insects, fighting to survive the perils of the backyard?

    2022ActionAdventure39.99 USDDeck VerifiedSteam ↗
  5. Breathedge

    WHY THIS

    Shares vehicle crafting, resource scavenging and a contemplative mood with Subnautica.

    Ranked #5 for Subnautica fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Subnautica.

    Survive in outer space! Together with your immortal chicken, discover the truth behind your sudden spaceship crash. Craft tools, pilot vehicles, and even control space stations to survive and explore the wreckage.

    2021ActionIndieAdventure24.99 USDSteam ↗
  6. Project Castaway

    WHY THIS

    Shares an immersive mood with Subnautica.

    Ranked #6 for Subnautica fans by collaborative filtering across millions of Steam libraries. Shares Adventure with Subnautica.

    Project Castaway is a survival crafting title set in the Pacific Ocean. Live the life of a stranded castaway, with only yourself - and the island's inhabitants - for company! Sail the ocean, hunt, explore unique islands and gather resources as you fight for survival.

    2026ActionAdventureRPG10.99 USDSteam ↗
  7. Bermuda - Lost Survival

    WHY THIS

    Shares an atmospheric mood with Subnautica.

    Ranked #7 for Subnautica fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Subnautica.

    Survivors, Adventurers, Explorers! Prepare for the journey of your life and experience one of the world’s most mysterious regions! The Bermuda Triangle is notorious for the vanishing of countless ships and airplanes. Will you survive long enough to reveal its secret?

    2020ActionStrategyIndieSteam ↗
  8. Raft

    WHY THIS

    Shares an atmospheric mood with Subnautica.

    Ranked #8 for Subnautica fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Subnautica.

    Raft™ throws you and your friends into an epic oceanic adventure! Alone or together, players battle to survive a perilous voyage across a vast sea! Gather debris, scavenge reefs and build your own floating home, but be wary of the man-eating sharks!

    2022IndieAdventureSimulation19.99 USDDeck PlayableSteam ↗

Reviewers mention these as similar to Subnautica

Surfaced from review text: when other players write 'if you liked X, try Y', we catch the name and resolve it back to a Steam game.

  1. Outer Wilds

    WHY THIS

    Shares an atmospheric mood with Subnautica.

    Reviewers of Subnautica cross-mention this title as a similar play. Shares Adventure with Subnautica.

    Named Game of the Year 2019 by Giant Bomb, Polygon, Eurogamer, and The Guardian, Outer Wilds is a critically-acclaimed and award-winning open world mystery about a solar system trapped in an endless time loop.

    2020ActionAdventure24.99 USDDeck VerifiedSteam ↗
  2. No Man's Sky

    WHY THIS

    Shares base building and an atmospheric mood with Subnautica.

    Reviewers of Subnautica cross-mention this title as a similar play. Shares Adventure with Subnautica.

    No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.

    2016ActionAdventure59.99 USDDeck VerifiedSteam ↗
  3. The Planet Crafter

    WHY THIS

    Reviewers of Subnautica cross-mention this title as a similar play. Shares Adventure with Subnautica.

    A space survival open world terraforming crafting game, designed for 1 to 10 players. Alter the ecosystem of an inhospitable planet to render it habitable for humanity. Survive, gather resources, and build your base. Then, generate oxygen, warmth, and pressure to create a brand new biosphere.

    2024Adventure23.99 USDDeck VerifiedSteam ↗
  4. Grounded

    WHY THIS

    Shares base building and an atmospheric mood with Subnautica.

    Reviewers of Subnautica cross-mention this title as a similar play. Shares Adventure with Subnautica.

    The world is a vast, beautiful and dangerous place – especially when you have been shrunk to the size of an ant. Can you thrive alongside the hordes of giant insects, fighting to survive the perils of the backyard?

    2022ActionAdventure39.99 USDDeck VerifiedSteam ↗
  5. Pacific Drive

    WHY THIS

    Shares an atmospheric mood with Subnautica.

    Reviewers of Subnautica cross-mention this title as a similar play. Shares Indie and Adventure with Subnautica.

    Face the supernatural dangers of the Olympic Exclusion Zone with a car as your only lifeline in this driving survival adventure! Scavenge resources, load up your trusty station wagon, and drive like hell to make it through alive.

    2024ActionIndieAdventure9.89 USDDeck PlayableSteam ↗
  6. The Long Dark

    WHY THIS

    Shares an atmospheric mood with Subnautica.

    Reviewers of Subnautica cross-mention this title as a similar play. Shares Indie and Adventure with Subnautica.

    THE LONG DARK is a thoughtful, exploration-survival experience that challenges solo players to think for themselves as they explore an expansive frozen wilderness in the aftermath of a geomagnetic disaster. There are no zombies -- only you, the cold, and all the threats Mother Nature can muster.

    2017StrategyIndieAdventure19.99 USDDeck VerifiedSteam ↗
  7. Don't Starve

    WHY THIS

    Shares an atmospheric mood with Subnautica.

    Reviewers of Subnautica cross-mention this title as a similar play. Shares Indie and Adventure with Subnautica.

    Don’t Starve is an uncompromising wilderness survival game full of science and magic. Enter a strange and unexplored world full of strange creatures, dangers, and surprises. Gather resources to craft items and structures that match your survival style.

    2013IndieAdventureSimulation9.99 USDDeck PlayableSteam ↗
  8. Satisfactory

    WHY THIS

    Shares base building and an immersive mood with Subnautica.

    Reviewers of Subnautica cross-mention this title as a similar play. Shares Indie and Adventure with Subnautica.

    Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!

    2024StrategyIndieAdventure39.99 USDDeck VerifiedSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below Subnautica at current Steam store prices.

  1. Terraria

    WHY THIS

    Shares an immersive mood with Subnautica.

    Priced ~67% under Subnautica on Steam right now. Shares Indie and Adventure with Subnautica.

    Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. Four Pack also available!

    2011ActionIndieAdventure9.99 USDDeck VerifiedSteam ↗
  2. Garry's Mod

    WHY THIS

    Priced ~83% under Subnautica on Steam right now. Shares Indie with Subnautica.

    Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. We give you the tools and leave you to play.

    2006IndieSimulationCasual4.99 USDDeck PlayableSteam ↗
  3. Stardew Valley

    WHY THIS

    Priced ~50% under Subnautica on Steam right now. Shares Indie with Subnautica.

    You've inherited your grandfather's old farm plot in Stardew Valley. Armed with hand-me-down tools and a few coins, you set out to begin your new life. Can you learn to live off the land and turn these overgrown fields into a thriving home?

    2016IndieSimulationRPG14.99 USDDeck VerifiedSteam ↗
  4. Lethal Company

    WHY THIS

    Priced ~67% under Subnautica on Steam right now. Shares Indie and Adventure with Subnautica.

    A co-op horror about scavenging at abandoned moons to sell scrap to the Company.

    2023ActionIndieAdventure9.99 USDDeck PlayableSteam ↗
  5. Hollow Knight

    WHY THIS

    Priced ~50% under Subnautica on Steam right now. Shares Indie and Adventure with Subnautica.

    Forge your own path in Hollow Knight! An epic action adventure through a vast ruined kingdom of insects and heroes. Explore twisting caverns, battle tainted creatures and befriend bizarre bugs, all in a classic, hand-drawn 2D style.

    2017ActionIndieAdventure14.99 USDDeck VerifiedSteam ↗
  6. People Playground

    WHY THIS

    Priced ~67% under Subnautica on Steam right now. Shares Indie with Subnautica.

    Shoot, stab, burn, poison, tear, vaporise, or crush ragdolls in a large open space.

    2019ActionIndieSimulation9.99 USDDeck PlayableSteam ↗
  7. Portal 2

    WHY THIS

    Priced ~67% under Subnautica on Steam right now. Shares Adventure with Subnautica.

    The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!

    2011ActionAdventure9.99 USDDeck VerifiedSteam ↗
  8. Undertale

    WHY THIS

    Priced ~67% under Subnautica on Steam right now. Shares Indie with Subnautica.

    UNDERTALE! The RPG game where you don't have to destroy anyone.

    2015IndieRPG9.99 USDDeck PlayableSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. Doki Doki Literature Club!

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Subnautica.

    The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.

    2017IndieFree To PlayCasualFreeDeck PlayableSteam ↗
  2. Life is Strange - Episode 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Adventure with Subnautica.

    Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.

    2015ActionAdventureFreeDeck PlayableSteam ↗
  3. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Subnautica.

    Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!

    2018ActionIndieFree To PlayFreeSteam ↗
  4. ENA: Dream BBQ

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Subnautica.

    Experience surreal environments and inexplicable characters as ENA in a new wild world.

    2025IndieAdventureFreeDeck VerifiedSteam ↗
  5. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Subnautica.

    Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.

    2024ActionIndieAdventureFreeDeck PlayableSteam ↗
  6. STRAFTAT

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.

    2024ActionFreeDeck PlayableSteam ↗
  7. The Looker

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Subnautica.

    You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.

    2022IndieFreeDeck PlayableSteam ↗
  8. Counter-Strike:Global Offensive

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).

    2012ActionFree To PlayFreeDeck PlayableSteam ↗

More from Unknown Worlds Entertainment

Other recommendable Steam games by Unknown Worlds Entertainment, ranked by review count so the studio's hits land first.

  1. Subnautica: Below Zero

    WHY THIS

    Shares an atmospheric mood with Subnautica.

    Another title from Unknown Worlds Entertainment, the studio behind Subnautica. Shares Indie and Adventure with Subnautica.

    Dive into a freezing underwater adventure on an alien planet. Below Zero is set two years after the original Subnautica. Return to Planet 4546B to uncover the truth behind a deadly cover-up. Survive by building habitats, crafting tools, & diving deeper into the world of Subnautica.

    2021IndieAdventure29.99 USDDeck VerifiedSteam ↗
  2. Subnautica 2

    WHY THIS

    Shares base building and an atmospheric mood with Subnautica.

    Another title from Unknown Worlds Entertainment, the studio behind Subnautica. Shares Adventure with Subnautica.

    Subnautica 2 is an underwater survival adventure set on an all-new alien world, developed by Unknown Worlds. Play alone or with friends in 4-player co-op. Adapt to survive by building custom bases and crafting tools. Explore the unknown to uncover the mysteries hidden within the depths.

    2026ActionAdventureEarly Access29.99 USDDeck VerifiedSteam ↗
  3. Natural Selection 2

    WHY THIS

    Another title from Unknown Worlds Entertainment, the studio behind Subnautica. Shares Indie with Subnautica.

    A fast paced multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival!

    2012ActionStrategyIndie4.99 USDDeck PlayableSteam ↗
  4. Moonbreaker

    WHY THIS

    Shares an atmospheric mood with Subnautica.

    Another title from Unknown Worlds Entertainment, the studio behind Subnautica.

    Moonbreaker is a turn-based strategy, tactical skirmish game. The game is designed to be a true digital miniatures experience, set in an expansive sci-fi universe crafted by Brandon Sanderson. Direct Captain and Crew in gripping, ever-changing competition and adventure.

    2024ActionStrategy11.99 USDDeck PlayableSteam ↗
  5. Zen of Sudoku

    WHY THIS

    Shares a contemplative mood with Subnautica.

    Another title from Unknown Worlds Entertainment, the studio behind Subnautica. Shares Indie with Subnautica.

    From the creators of Natural Selection comes Zen of Sudoku, a relaxing, easy to play version of Sudoku for your PC.Relax with hand-painted Japanese-styled backgrounds, no timer and lush natural soundscapes.Stimulates your brain to keep it healthy and alert.

    2006IndieCasualFreeDeck PlayableSteam ↗
  6. Future Perfect

    WHY THIS

    Another title from Unknown Worlds Entertainment, the studio behind Subnautica. Shares Indie with Subnautica.

    Future Perfect breaks down the barrier between having an idea for a game, and playing it with friends. The Future Perfect interface allows you to create, play, and share multiplayer games quickly and easily.Games created with Future Perfect are published on Steam Workshop. You can browse, rate, and download games that interest you.

    ActionIndieSteam ↗

Plays great on Steam Deck

Valve-Verified or Playable picks from the similar pool — ready to go on Deck out of the box.

  1. Subnautica: Below Zero

    WHY THIS

    Shares an atmospheric mood with Subnautica.

    Deck Verified — runs on Steam Deck out of the box. Shares Indie and Adventure with Subnautica.

    Dive into a freezing underwater adventure on an alien planet. Below Zero is set two years after the original Subnautica. Return to Planet 4546B to uncover the truth behind a deadly cover-up. Survive by building habitats, crafting tools, & diving deeper into the world of Subnautica.

    2021IndieAdventure29.99 USDDeck VerifiedSteam ↗
  2. No Man's Sky

    WHY THIS

    Shares base building and an atmospheric mood with Subnautica.

    Deck Verified — runs on Steam Deck out of the box. Shares Adventure with Subnautica.

    No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.

    2016ActionAdventure59.99 USDDeck VerifiedSteam ↗
  3. Grounded

    WHY THIS

    Shares base building and an atmospheric mood with Subnautica.

    Deck Verified — runs on Steam Deck out of the box. Shares Adventure with Subnautica.

    The world is a vast, beautiful and dangerous place – especially when you have been shrunk to the size of an ant. Can you thrive alongside the hordes of giant insects, fighting to survive the perils of the backyard?

    2022ActionAdventure39.99 USDDeck VerifiedSteam ↗

Frequently asked about Subnautica

Is Subnautica verified for Steam Deck?
Yes — Subnautica is Steam Deck Verified, meaning Valve has confirmed it runs well on the Deck with full controller, text legibility, and default configuration support.
How much does Subnautica cost?
Subnautica is listed on Steam at 29.99 USD (current store price; Steam sales may reduce this temporarily).
What games are most similar to Subnautica?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Subnautica are Subnautica: Below Zero, No Man's Sky, The Forest.
Who developed Subnautica?
Subnautica was developed by Unknown Worlds Entertainment.

imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Subnautica.

For library-aware picks tuned to your specific taste, sign in with Steam on the home page.