IMHO.

Single-player games like Submarine Titans

Below are 16 single-player Steam games similar to Submarine Titans, 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 Submarine Titans page.

Ranked picks

  1. 1
    Fleet Command — Steam game cover

    Fleet Command

    Single-player alternative to Submarine Titans — playable solo, no multiplayer required. Shares Strategy with Submarine Titans.

    International waterways become theaters of war when the world's most formidable maritime powers exchange their fatal blows. With entire fleets at your command, you must strategically deploy vessels from every class - frigate to aircraft to nuclear submarine - to maintain the precarious balance of naval power and gain position for the...

    2006Strategy3.79 USDSingle-playerSimilar games →
  2. 2
    Morse Depths: WWII — Steam game cover

    Morse Depths: WWII

    Single-player alternative to Submarine Titans — playable solo, no multiplayer required. Shares Strategy and Simulation with Submarine Titans.

    Take command of a WWII submarine. Master Morse Code to fire torpedoes, defuse mines, and survive the final siege. From 1942 to 1945, every dot and dash is the difference between glory and the ocean floor.

    2026ActionStrategyIndieSingle-playerSimilar games →
  3. 3
    Submarine War — Steam game cover

    Submarine War

    Single-player alternative to Submarine Titans — playable solo, no multiplayer required. Shares Strategy with Submarine Titans.

    Submarine War is a new action-packed submarine combat game that immerses players in the 3D action with unique game controls and 3D environments.

    2021ActionStrategyIndieDeck VerifiedSingle-playerSimilar games →
  4. 4
    Sub Command — Steam game cover

    Sub Command

    Single-player alternative to Submarine Titans — playable solo, no multiplayer required. Shares Strategy with Submarine Titans.

    Take charge of the most deadly modern-day submarines in the world - three distinct submarines across two unique and challenging campaigns. Utilize cutting-edge sensor and weapon technology to locate, track and destroy the enemy - even deliver Tomahawk missiles to inland targets.

    2006Strategy3.79 USDSingle-playerSimilar games →
  5. 5
    Nuclear Sub: Prologue — Steam game cover

    Nuclear Sub: Prologue

    Single-player alternative to Submarine Titans — playable solo, no multiplayer required.

    The Prologue is just part of the gameplay that awaits you in the full version of the game. A realistic nuclear submarine simulator will allow you to take command of your crew and battle your fiercest enemies. Arm yourself with missiles, dive into the ocean and fight for your country

    2026Free To PlayFreeSingle-playerSimilar games →
  6. 6
    Silent Hunter® III — Steam game cover

    Silent Hunter® III

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

    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 →
  7. 7
    Silent Hunter 5®: Battle of the Atlantic — Steam game cover

    Silent Hunter 5®: Battle of the Atlantic

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

    Step behind the periscope of a German U-boat and take on the Allied Forces in famous battles across the vast Atlantic Ocean and Mediterranean Sea. The best-selling submarine series of all time continues with the highly anticipated Silent Hunter: Battle of the Atlantic.

    2010Simulation9.99 USDSingle-playerSimilar games →
  8. 8
    Silent Hunter®: Wolves of the Pacific — Steam game cover

    Silent Hunter®: Wolves of the Pacific

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

    Hunt, hide and kill as you take command of U.S. submarines and crews and navigate the treacherous waters of the Pacific during WWII. Silent Hunter, the industry-leading naval warfare simulation franchise for over a decade, returns to its roots with next-generation graphical realism, immersive gameplay, innovative crew evolution and more...

    2008Simulation9.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Command & Conquer: Red Alert 3 - Uprising — Steam game cover

    Command & Conquer: Red Alert 3 - Uprising

    Single-player alternative to Submarine Titans — playable solo, no multiplayer required. Shares Strategy with Submarine Titans.

    Red Alert 3: Uprising features four new mini-campaigns, giving players a deeper dive into the storyline's of the Soviets, the Allies, the Empire of the Rising Sun and a unique campaign centered on the origins of everyone’s favorite psionic Japanese schoolgirl commando, Yuriko Omega.

    2009ActionStrategyFree To PlayDeck PlayableSingle-playerSimilar games →
  10. 10
    Total Annihilation — Steam game cover

    Total Annihilation

    Single-player alternative to Submarine Titans — playable solo, no multiplayer required. Shares Strategy with Submarine Titans.

    What began as a conflict over the transfer of consciousness from flesh to machines escalated into a war which has decimated a million worlds. The Core and the Arm have all but exhausted the resources of a galaxy in their struggle for domination.

    2015Strategy4.99 USDSingle-playerSimilar games →
  11. 11
    Cossacks 3 — Steam game cover

    Cossacks 3

    Single-player alternative to Submarine Titans — playable solo, no multiplayer required. Shares Strategy with Submarine Titans.

    Cossacks 3 is the return of RTS classics. Obtain resources, build cities and research technologies while taking command of great armies, crushing enemies in grand historical warfares on land and sea!

    2016ActionStrategyAdventure19.99 USDSingle-playerSimilar games →
  12. 12
    Demise of Nations — Steam game cover

    Demise of Nations

    Single-player alternative to Submarine Titans — playable solo, no multiplayer required. Shares Strategy with Submarine Titans.

    Demise of Nations is a 4X turn-based grand strategy wargame covering the rise of Rome till the fall of modern civilization.

    2017StrategyIndieFree To PlayFreeSingle-playerSimilar games →
  13. 13
    SC2VN - The eSports Visual Novel — Steam game cover

    SC2VN - The eSports Visual Novel

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

    SC2VN is a visual novel about the South Korean StarCraft 2 scene. You play as Mach, a foreign semi-pro trying to make it in eSports who soon learns that success in StarCraft takes more than in-game strategy.

    2015IndieAdventureSimulationFreeDeck PlayableSingle-playerSimilar games →
  14. 14
    WARZONE — Steam game cover

    WARZONE

    Single-player alternative to Submarine Titans — playable solo, no multiplayer required. Shares Strategy with Submarine Titans.

    WARZONE is a tactical turn-based war game which requires a chess level of logical thinking and which provides an entertainment comparable to that of a tank shooter.

    2017StrategyIndieMassively Multiplayer4.99 USDSingle-playerSimilar games →
  15. 15
    Age of Empires: Definitive Edition — Steam game cover

    Age of Empires: Definitive Edition

    Single-player alternative to Submarine Titans — playable solo, no multiplayer required. Shares Strategy with Submarine Titans.

    Age of Empires, the pivotal real-time strategy game that launched a 20-year legacy returns with modernized gameplay, all-new 4K visuals, 8-person multiplayer battles and a host of other new features. Welcome back to history.

    2019Strategy19.99 USDDeck PlayableSingle-playerSimilar games →
  16. 16
    Aircraft War — Steam game cover

    Aircraft War

    Single-player alternative to Submarine Titans — playable solo, no multiplayer required.

    Fight against enemy planes with the fun Aircraft War! Challenge your friends with single and double player modes. Conquer the sky, enjoy the victory!

    2019ActionIndieCasual0.99 USDSingle-playerSimilar games →