IMHO.

Games like Subnautica 2

If Subnautica 2 is your kind of game, the closest matches are No Man's Sky, Subnautica: Below Zero and Subnautica — picked from the ranked list below. Reviewers single out its anxious, atmospheric 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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Subnautica 2 is an underwater survival adventure from Unknown Worlds Entertainment, releasing in 2026 at $29.99 USD. Set on a newly revealed alien world, the game supports up to four players in cooperative play alongside solo options. Players explore open-world underwater environments, gathering resources to construct custom bases and craft tools needed for survival. The title carries Steam Deck Verified status and holds a 91 percent positive rating from over 110,000 Steam reviews. Available in Early Access, the experience combines survival horror elements with first-person exploration through action and adventure gameplay.

About Subnautica 2: 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 VerifiedWindowsby Unknown Worlds Entertainment
Subnautica 2 — Steam game cover
Players highlight
Atmospheric story about survival on an alien worldBase building with unprecedented freedom and creativityCooperative multiplayer that works seamlesslyAnxiousAtmosphericImmersive

Players who liked Subnautica 2 also play

Steam players who put hours into Subnautica 2 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. No Man's Sky

    WHY THIS

    Shares base building, exploration and an atmospheric mood with Subnautica 2.

    Top pick for Subnautica 2 fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with Subnautica 2.

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

    2016ActionAdventure59.99 USDDeck VerifiedSteam ↗
  2. Subnautica: Below Zero

    WHY THIS

    Shares an atmospheric mood with Subnautica 2.

    Second-strongest match for Subnautica 2 fans by collaborative filtering across millions of Steam libraries. Shares Adventure with Subnautica 2.

    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 ↗
  3. Subnautica

    WHY THIS

    Shares base building and an atmospheric mood with Subnautica 2.

    Third-strongest match for Subnautica 2 fans by collaborative filtering across millions of Steam libraries. Shares Adventure with Subnautica 2.

    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 VerifiedSteam ↗
  4. Blind Descent

    WHY THIS

    Ranked #4 for Subnautica 2 fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with Subnautica 2.

    Blind Descent is an open-world survival adventure that unveils the mysteries of the Martian depths. Play solo or with friends in 4-player co-op as you search for the missing team. Adapt to survive by building custom tools, upgrading the base, and/or mutating in this bizarre alien world.

    ActionIndieAdventureSteam ↗
  5. Don't Starve Together

    WHY THIS

    Shares base building and a tense mood with Subnautica 2.

    Ranked #5 for Subnautica 2 fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with Subnautica 2.

    Fight, Farm, Build and Explore Together in the standalone multiplayer expansion to the uncompromising wilderness survival game, Don't Starve.

    2016ActionStrategyIndie14.99 USDDeck VerifiedSteam ↗
  6. Satisfactory

    WHY THIS

    Shares base building and an immersive mood with Subnautica 2.

    Ranked #6 for Subnautica 2 fans by collaborative filtering across millions of Steam libraries. Shares Adventure with Subnautica 2.

    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 ↗
  7. Dune: Awakening

    WHY THIS

    Ranked #7 for Subnautica 2 fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with Subnautica 2.

    Dune: Awakening is an Open World Survival RPG where you can fully immerse yourself in the epic world of Dune. Alone or with friends, explore a vast open world Arrakis, survive the sandworms, build a home, craft an ornithopter, and unravel the mystery of the missing Fremen.

    2025ActionAdventureMassively Multiplayer49.99 USDDeck VerifiedSteam ↗
  8. Rust

    WHY THIS

    Shares base building and a tense mood with Subnautica 2.

    Ranked #8 for Subnautica 2 fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with Subnautica 2.

    The only aim in Rust is to survive. Everything wants you to die - the island’s wildlife, other inhabitants, the environment, and other survivors. Do whatever it takes to last another night.

    2018ActionIndieAdventure19.99 USDSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below Subnautica 2 at current Steam store prices.

  1. Terraria

    WHY THIS

    Priced ~67% under Subnautica 2 on Steam right now. Shares Action and Adventure with Subnautica 2.

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

    2011ActionIndieAdventure9.99 USDDeck VerifiedSteam ↗
  2. Lethal Company

    WHY THIS

    Shares an atmospheric mood with Subnautica 2.

    Priced ~67% under Subnautica 2 on Steam right now. Shares Action and Adventure with Subnautica 2.

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

    2023ActionIndieAdventure9.99 USDDeck PlayableSteam ↗
  3. Left 4 Dead 2

    WHY THIS

    Priced ~67% under Subnautica 2 on Steam right now. Shares Action with Subnautica 2.

    Set in the zombie apocalypse, Left 4 Dead 2 is a co-operative action horror FPS takes you and your friends through the cities, swamps and cemeteries of the Deep South, from Savannah to New Orleans across five expansive campaigns.

    2009Action9.99 USDDeck VerifiedSteam ↗
  4. Hollow Knight

    WHY THIS

    Priced ~50% under Subnautica 2 on Steam right now. Shares Action and Adventure with Subnautica 2.

    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 ↗
  5. People Playground

    WHY THIS

    Priced ~67% under Subnautica 2 on Steam right now. Shares Action with Subnautica 2.

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

    2019ActionIndieSimulation9.99 USDDeck PlayableSteam ↗
  6. Portal 2

    WHY THIS

    Priced ~67% under Subnautica 2 on Steam right now. Shares Action and Adventure with Subnautica 2.

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

    2011ActionAdventure9.99 USDDeck VerifiedSteam ↗
  7. Fallout: New Vegas

    WHY THIS

    Priced ~67% under Subnautica 2 on Steam right now. Shares Action with Subnautica 2.

    Welcome to Vegas. New Vegas. Enjoy your stay!

    2010ActionRPG9.99 USDDeck PlayableSteam ↗
  8. The Binding of Isaac: Rebirth

    WHY THIS

    Priced ~50% under Subnautica 2 on Steam right now. Shares Action with Subnautica 2.

    The Binding of Isaac: Rebirth is a randomly generated action RPG shooter with heavy Rogue-like elements. Following Isaac on his journey players will find bizarre treasures that change Isaac’s form giving him super human abilities and enabling him to fight off droves of mysterious creatures, discover secrets and fight his way to safety.

    2014Action14.99 USDDeck VerifiedSteam ↗

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.

    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 Action and Adventure with Subnautica 2.

    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 Action with Subnautica 2.

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

    2018ActionIndieFree To PlayFreeSteam ↗
  4. Bongo Cat

    WHY THIS

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

    Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?

    2025IndieSimulationMassively MultiplayerFreeDeck PlayableSteam ↗
  5. ENA: Dream BBQ

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Adventure with Subnautica 2.

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

    2025IndieAdventureFreeDeck VerifiedSteam ↗
  6. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Adventure with Subnautica 2.

    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 ↗
  7. STRAFTAT

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Subnautica 2.

    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 ↗
  8. The Looker

    WHY THIS

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

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

    2022IndieFreeDeck 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

    WHY THIS

    Shares base building and an atmospheric mood with Subnautica 2.

    Another title from Unknown Worlds Entertainment, the studio behind Subnautica 2. Shares Adventure with Subnautica 2.

    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 VerifiedSteam ↗
  2. Subnautica: Below Zero

    WHY THIS

    Shares an atmospheric mood with Subnautica 2.

    Another title from Unknown Worlds Entertainment, the studio behind Subnautica 2. Shares Adventure with Subnautica 2.

    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 ↗
  3. Natural Selection 2

    WHY THIS

    Another title from Unknown Worlds Entertainment, the studio behind Subnautica 2. Shares Action with Subnautica 2.

    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 2.

    Another title from Unknown Worlds Entertainment, the studio behind Subnautica 2. Shares Action with Subnautica 2.

    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

    Another title from Unknown Worlds Entertainment, the studio behind Subnautica 2.

    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 2. Shares Action with Subnautica 2.

    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. No Man's Sky

    WHY THIS

    Shares base building, exploration and an atmospheric mood with Subnautica 2.

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Adventure with Subnautica 2.

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

    2016ActionAdventure59.99 USDDeck VerifiedSteam ↗
  2. Subnautica: Below Zero

    WHY THIS

    Shares an atmospheric mood with Subnautica 2.

    Deck Verified — runs on Steam Deck out of the box. Shares Adventure with Subnautica 2.

    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 ↗
  3. Subnautica

    WHY THIS

    Shares base building and an atmospheric mood with Subnautica 2.

    Deck Verified — runs on Steam Deck out of the box. Shares Adventure with Subnautica 2.

    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 VerifiedSteam ↗
  4. Don't Starve Together

    WHY THIS

    Shares base building and a tense mood with Subnautica 2.

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Adventure with Subnautica 2.

    Fight, Farm, Build and Explore Together in the standalone multiplayer expansion to the uncompromising wilderness survival game, Don't Starve.

    2016ActionStrategyIndie14.99 USDDeck VerifiedSteam ↗
  5. Satisfactory

    WHY THIS

    Shares base building and an immersive mood with Subnautica 2.

    Deck Verified — runs on Steam Deck out of the box. Shares Adventure with Subnautica 2.

    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 ↗
  6. Dune: Awakening

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Adventure with Subnautica 2.

    Dune: Awakening is an Open World Survival RPG where you can fully immerse yourself in the epic world of Dune. Alone or with friends, explore a vast open world Arrakis, survive the sandworms, build a home, craft an ornithopter, and unravel the mystery of the missing Fremen.

    2025ActionAdventureMassively Multiplayer49.99 USDDeck VerifiedSteam ↗

Frequently asked about Subnautica 2

Is Subnautica 2 verified for Steam Deck?
Yes — Subnautica 2 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 2 cost?
Subnautica 2 is listed on Steam at 29.99 USD (current store price; Steam sales may reduce this temporarily).
Does Subnautica 2 have multiplayer or co-op?
Yes — Subnautica 2 supports multi-player play according to its Steam store listing (Multi-player, Cross-Platform Multiplayer, Online Co-op).
What games are most similar to Subnautica 2?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Subnautica 2 are No Man's Sky, Subnautica: Below Zero, Subnautica.
Who developed Subnautica 2?
Subnautica 2 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 2.

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