Best Underwater Games Under $5

The 25 highest-rated underwater games you can get for under $5, ranked by Steam reviews, with the cheapest key across 21 stores.

  1. #197% of 189,224 Steam reviews
    Subnautica game key cover art

    Subnautica

    $29.99 -85%
    $4.42
    driffle & 30 stores
    2018
    Open World Survival CraftSurvivalHorror
    Steam97%
    Achieve17
    Deckgold
  2. #299% of 2,951 Steam reviews
    Loddlenaut game key cover art

    Loddlenaut

    $19.99 -96%
    $0.69
    kinguin & 21 stores
    2023
    UnderwaterRelaxingCute
    Steam99%
    Achieve23
    Deckplatinum
  3. #397% of 4,886 Steam reviews
    Insaniquarium! Deluxe game key cover art

    Insaniquarium! Deluxe

    $4.99
    steam & 3 stores
    2004
    CasualClassicIncremental
    Steam97%
    Deckplatinum
  4. #497% of 1,231 Steam reviews
    Feeding Frenzy 2: Shipwreck Showdown game key cover art

    Feeding Frenzy 2: Shipwreck Showdown

    $4.99
    steam & 2 stores
    2006
    CasualSingleplayerArcade
    Steam97%
    Deckplatinum
  5. #590% of 10,135 Steam reviews
    Depth game key cover art

    Depth

    $19.99 -75%
    $4.99
    steam & 13 stores
    2014
    ShooterUnderwaterMultiplayer
    Steam90%
    Achieve40
    Deckgold
  6. #693% of 1,054 Steam reviews
    Scale the Depths game key cover art

    Scale the Depths

    $9.99 -56%
    $4.38
    kinguin & 12 stores
    2026
    FishingCasualPixel Graphics
    Steam93%
    Achieve25
    Deckpending
  7. #796% of 293 Steam reviews
    My Koi game key cover art

    My Koi

    $4.99
    steam
    2020
    RelaxingSimulationNature
    Steam96%
    Deckplatinum
  8. #894% of 350 Steam reviews
    Ace of Seafood game key cover art

    Ace of Seafood

    $11.99 -71%
    $3.36
    kinguin & 8 stores
    2016
    UnderwaterMemesSpectacle fighter
    Steam94%
    Achieve11
    Deckplatinum
  9. #989% of 9,092 Steam reviews
    Maneater game key cover art

    Maneater

    $39.99 -93%
    $2.79
    loaded & 33 stores
    2020
    Open WorldDark HumorViolent
    Steam89%
    Achieve44
    Deckplatinum
  10. #1097% of 96 Steam reviews
    Mythic Ocean game key cover art

    Mythic Ocean

    $14.99 -97%
    $0.40
    kinguin & 16 stores
    2020
    IndieAdventureUnderwater
    Steam97%
    Achieve33
    Deckpending
  11. #1198% of 83 Steam reviews
    Tuna Hake's Underwater game key cover art

    Tuna Hake's Underwater

    $2.99
    steam
    2025
    UnderwaterActionPhysics
    Steam98%
    Achieve24
  12. #1288% of 554 Steam reviews
    Beyond Blue game key cover art

    Beyond Blue

    $19.99 -94%
    $1.01
    GameSeal & 16 stores
    2020
    UnderwaterAdventureExploration
    Steam88%
    Achieve30
    Deckgold
  13. #1386% of 1,023 Steam reviews
    Death in the Water 2 game key cover art

    Death in the Water 2

    $14.99 -89%
    $1.61
    kinguin & 10 stores
    2023
    Survival HorrorUnderwaterAtmospheric
    Steam86%
    Achieve19
    Deckpending
  14. #1486% of 707 Steam reviews
    Aquarium Designer game key cover art

    Aquarium Designer

    $9.99 -89%
    $1.05
    kinguin & 21 stores
    2021
    UnderwaterRelaxingFamily Friendly
    Steam86%
    Achieve30
    Deckplatinum
  15. #1587% of 196 Steam reviews
    Stirring Abyss game key cover art

    Stirring Abyss

    $24.99 -95%
    $1.11
    driffle & 18 stores
    2020
    LovecraftianUnderwaterRPG
    Steam87%
    Achieve32
    Deckgold
  16. #1688% of 107 Steam reviews
    The Sirena Expedition game key cover art

    The Sirena Expedition

    $5.99 -80%
    Historic Low $1.19
    steam
    2023
    HorrorPlatformerUnderwater
    Steam88%
    Achieve12
    Deckpending
  17. #1786% of 131 Steam reviews
    The Trench game key cover art

    The Trench

    $3.99
    steam
    2022
    HorrorSubmarineUnderwater
    Steam86%
    Deckpending
  18. #1885% of 202 Steam reviews
    Crab God game key cover art

    Crab God

    $19.99 -96%
    Historic Low $0.77
    driffle & 17 stores
    2024
    SingleplayerRoguelikeStrategy
    Steam85%
    Achieve47
    Deckgold
  19. #1983% of 198 Steam reviews
    Neo Aquarium: The King of Crustaceans game key cover art

    Neo Aquarium: The King of Crustaceans

    $8.99 -81%
    Historic Low $1.62
    kinguin & 9 stores
    2015
    IndieActionUnderwater
    Steam83%
    Achieve21
    Deckgold
  20. #2079% of 168 Steam reviews
    Koral game key cover art

    Koral

    $14.99 -70%
    $4.49
    steam
    2019
    UnderwaterCasualBeautiful
    Steam79%
    Achieve17
    Deckplatinum
  21. #2175% of 650 Steam reviews
    Narcosis game key cover art

    Narcosis

    $14.99 -93%
    $0.92
    kinguin & 18 stores
    2017
    HorrorAdventureUnderwater
    Steam75%
    Achieve10
    Deckplatinum
  22. #2274% of 692 Steam reviews
    Under the Waves game key cover art

    Under the Waves

    $29.99 -97%
    $0.77
    GameSeal & 23 stores
    2023
    AdventureUnderwaterExploration
    Steam74%
    Achieve38
    Deckplatinum
  23. #2374% of 133 Steam reviews
    Death in the Water game key cover art

    Death in the Water

    $2.99 -50%
    $1.49
    steam & 1 store
    2019
    UnderwaterActionIndie
    Steam74%
    Achieve5
    Deckpending
  24. #2474% of 96 Steam reviews
    Depth Hunter 2: Deep Dive game key cover art

    Depth Hunter 2: Deep Dive

    $9.99 -82%
    $1.78
    kinguin & 13 stores
    2014
    SimulationUnderwaterHunting
    Steam74%
    Achieve17
    Deckplatinum
  25. #2572% of 89 Steam reviews
    AquaNox 2: Revelation game key cover art

    AquaNox 2: Revelation

    $4.99 -89%
    $0.52
    GameSeal & 15 stores
    2003
    ActionUnderwaterSingleplayer
    Steam72%
    Deckplatinum
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