IMHO.

Single-player games like Whale Captain

Below are 8 single-player Steam games similar to Whale Captain, 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 Whale Captain page.

Ranked picks

  1. 1
    Earth Atlantis 2 — Steam game cover

    Earth Atlantis 2

    Single-player alternative to Whale Captain — playable solo, no multiplayer required. Shares Action with Whale Captain.

    Earth Atlantis 2 is a boss-focused shoot 'em up set in a post-apocalyptic sunken world ruled by machine sea monsters. Pilot a heavily armed sub through relentless battles against 20+ colossal bosses, explore a Metroidvania-style underwater world, and uncover lost secrets to save humanity.

    ActionSingle-playerSimilar games →
  2. 2
    Rise & Shine — Steam game cover

    Rise & Shine

    Single-player alternative to Whale Captain — playable solo, no multiplayer required. Shares Action and Indie with Whale Captain.

    Welcome to Gamearth, a once peaceful planet now threatened by the warmongering Space grunts of Nexgen. In the aftermath of their devastating first strike a child named Rise is forced to take on the sacred gun Shine - and with it the fate of his world.

    2017ActionIndie9.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    Rigid Force Alpha — Steam game cover

    Rigid Force Alpha

    Single-player alternative to Whale Captain — playable solo, no multiplayer required. Shares Action and Indie with Whale Captain.

    Classic shoot’em up action in modern 3D! Blast off to take down hordes of infected aliens and dreadful machines programmed on waging an intergalactic war against mankind!

    2018ActionIndie19.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Space War: Infinity — Steam game cover

    Space War: Infinity

    Single-player alternative to Whale Captain — playable solo, no multiplayer required. Shares Action and Indie with Whale Captain.

    Vertical semi-procedural shmup with upgrades, real-time enemy waves, and infinite replayability. Level up your ship, unlock 20+ weapons, defeat 5 bosses, and survive endless bullet-hell combat.

    2019ActionIndieCasual2.99 USDSingle-playerSimilar games →
  5. 5
    ProtoCorgi — Steam game cover

    ProtoCorgi

    Single-player alternative to Whale Captain — playable solo, no multiplayer required. Shares Action and Indie with Whale Captain.

    Get ready to Bark’em Up! Play as Bullet, a C³ class (Cute Cybernetic Corgi) pup on his quest to save his owner, a brilliant scientist kidnapped by an alien race that wants to rule the galaxy. ProtoCorgi is a retro pixel art shoot’em up with a strong arcade feel!

    2023ActionIndie6.99 USDDeck VerifiedSingle-playerSimilar games →
  6. 6
    TYPECAST — Steam game cover

    TYPECAST

    Single-player alternative to Whale Captain — playable solo, no multiplayer required. Shares Action and Indie with Whale Captain.

    TYPECAST is a bullet hell where you type to shoot. Get swarmed by enemies, manage the chaos, and climb the leaderboards in this unique arcade experience.

    2023ActionIndie4.99 USDDeck VerifiedSingle-playerSimilar games →
  7. 7
    Destropolis — Steam game cover

    Destropolis

    Single-player alternative to Whale Captain — playable solo, no multiplayer required. Shares Action and Indie with Whale Captain.

    Destropolis is a top-down shooter game with a fully destructible environment, hundreds of enemies and nuclear explosions. Fight a countless swarm of enemies. Tear them to pieces with bullets, lasers and explosions. Destroy as many of them as you can before they overwhelm you...

    2020ActionIndieRPG5.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Waves — Steam game cover

    Waves

    Single-player alternative to Whale Captain — playable solo, no multiplayer required. Shares Action and Indie with Whale Captain.

    Waves is an Arcade Twin-Stick Shooter that's all about High Scores. Build your combo and drop bombs in pursuit of Leaderboard dominance over seven game-modes!

    2011ActionIndieFreeDeck VerifiedSingle-playerSimilar games →