IMHO.

Single-player games like Deep Sixed

Below are 12 single-player Steam games similar to Deep Sixed, 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 Deep Sixed page.

Ranked picks

  1. 1
    Shortest Trip to Earth — Steam game cover

    Shortest Trip to Earth

    Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Action and Strategy with Deep Sixed.

    Shortest Trip to Earth is a roguelike spaceship simulator focused on exploration, ship management and tactical battles. Embark on a perilous journey across the universe with nuclear missiles, armed crew and a cat.

    2019ActionStrategyIndie25.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Battlevoid: Harbinger — Steam game cover

    Battlevoid: Harbinger

    Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Action and Strategy with Deep Sixed.

    Battlevoid: Harbinger is a hard sci-fi space exploration game blending roguelike, turn-based, star map strategy, and real-time space battles. You are a young commander venturing out into enemy territories, to unknown galaxies, never knowing what you will face as you jump out from hyperspace.

    2016ActionStrategyIndie9.99 USDDeck VerifiedSingle-playerSimilar games →
  3. 3
    No Ticket Back: Craft, Survive & Escape — Steam game cover

    No Ticket Back: Craft, Survive & Escape

    Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Action and Strategy with Deep Sixed.

    As the brave crew sets course for the Red Planet, their mission takes a terrifying turn. In the vast emptiness of space, their once-proud vessel becomes a haunted nightmare. Can they survive the horrors that await them in the darkness and escape or will they succumb before completing their mission?

    2025ActionStrategyAdventure9.99 USDSingle-playerSimilar games →
  4. 4
    Supernova Tactics — Steam game cover

    Supernova Tactics

    Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Action and Strategy with Deep Sixed.

    Customize your army with different traits and items. Unlock permanent upgrades to go deeper in this survival Auto-Battler/Roguelite hybrid!

    2022ActionStrategyIndie6.99 USDSingle-playerSimilar games →
  5. 5
    Genesis Alpha One Deluxe Edition — Steam game cover

    Genesis Alpha One Deluxe Edition

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

    Hyperjump into the dark recesses of space with Genesis Alpha One - a roguelike FPS where you must build, maintain and navigate your ship through a galaxy filled with hostile alien and human threats. Explore, create and survive the militarized space race in order to secure humanity’s future.

    2020ActionIndieAdventure19.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Last Star — Steam game cover

    Last Star

    Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Action and Strategy with Deep Sixed.

    Last Star is a space shooter roguelite with tower defense elements. Pilot a spaceship to protect your solar core from endless waves of alien invaders. Upgrade both your core and spaceship to become unstoppable. Execute tactical counterattacks against alien motherships to slow down the invasion.

    2024ActionStrategyAdventure3.99 USDSingle-playerSimilar games →
  7. 7
    FALL — Steam game cover

    FALL

    Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Action and Strategy with Deep Sixed.

    In the past, the world was almost invaded by zombies.You will play the commander of the remaining survivor camp, searching for hope for the last surviving companions, forming and assigning your special police squad to explore this post-apocalyptic world filled with zombies!

    2024ActionStrategyIndie4.99 USDSingle-playerSimilar games →
  8. 8
    ASHER Descent — Steam game cover

    ASHER Descent

    Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Action and Strategy with Deep Sixed.

    Go down. Get stronger. Come back alive. Mine the mountain. Defend your shuttle. Adapt or get overrun.

    ActionStrategyIndieSingle-playerSimilar games →
  9. 9
    Silent Hunter® III — Steam game cover

    Silent Hunter® III

    Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Simulation with Deep Sixed.

    The king of submarine simulations returns with an all-new 3D engine, new crew command features, and more realistic WWII naval action than ever before. The movie-like graphics and simple, tension-filled gameplay make this the perfect game for the realism fanatic and the casual gamer.

    2008Simulation9.99 USDDeck PlayableSingle-playerSimilar games →
  10. 10
    Rogue State Revolution — Steam game cover

    Rogue State Revolution

    Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Strategy and Indie with Deep Sixed.

    Greetings your Excellency. Time to rebuild, reform and prepare for new challenges in the People's Republic of Basenji. In this thrilling political strategy, you will appoint ministers and lead the country to success. Be careful — you may find yourself replaced in the next election.

    2021StrategyIndieSimulation12.99 USDSingle-playerSimilar games →
  11. 11
    Precipice — Steam game cover

    Precipice

    Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Strategy and Indie with Deep Sixed.

    A game of diplomacy and war in the atomic age. Safeguard your closest allies and change unfavorable regimes without giving away your long-term ambitions. Every action risks an enemy reprisal, and if nobody backs down from a standoff, we all lose.

    2019StrategyIndieSimulation7.99 USDDeck PlayableSingle-playerSimilar games →
  12. 12
    Rogue State — Steam game cover

    Rogue State

    Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Strategy and Indie with Deep Sixed.

    Assume control of a Middle Eastern country recovering from a violent revolution. Forge alliances, grow your economy, invade your neighbors, or pacify your population. Rogue State is a geopolitical strategy game that will force you to always stay one step ahead of your rivals to survive.

    2015StrategyIndieSimulation4.99 USDSingle-playerSimilar games →