IMHO.

Single-player games like BOSSLEFT

Below are 9 single-player Steam games similar to BOSSLEFT, 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 BOSSLEFT page.

Ranked picks

  1. 1
    Project S.U.N.D.I.A.L — Steam game cover

    Project S.U.N.D.I.A.L

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

    Project S.U.N.D.I.A.L. is a PvPvE extraction shooter playable in single-player or online. Explore a shattered Europe, battle hostile players, ruthless raiders, and terrifying Hollows, then fight your way to extraction.

    ActionIndieAdventureSingle-playerSimilar games →
  2. 2
    Flushed Forward — Steam game cover

    Flushed Forward

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

    Control a limbless sewer creature on board a large speed boat pursued by a massive sewer tidal wave in this Arcade experience! Defend against enemies by vaulting across your boat to stomp on their heads!

    2027ActionIndieFree To PlayFreeSingle-playerSimilar games →
  3. 3
    Cobra Strike — Steam game cover

    Cobra Strike

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

    In COBRA STRIKE you pilot all sorts of gunships and helicopters with true retro-style inertia flight controls that will make you feel just awesome! The '90s call for your duty! Relive the Strike! 💥🚁🎮

    ActionIndieSimulationSingle-playerSimilar games →
  4. 4
    My Zombie Apocalypse — Steam game cover

    My Zombie Apocalypse

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

    A fun, no-nonsense top-down action game: tear through an infested low-poly city, rip through short, dynamic missions on foot or behind the wheel, and climb the global Steam leaderboard.

    2026ActionIndieCasualSingle-playerSimilar games →
  5. 5
    HELLDROP — Steam game cover

    HELLDROP

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

    HELL DROP is a roguelite action shooter with modular ship-building. Drop into a hostile insect planet, assemble upgrades on the descent, breach the crust, and detonate the core.

    ActionIndieCasualSingle-playerSimilar games →
  6. 6
    Cowboy Hell — Steam game cover

    Cowboy Hell

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

    Cowboy Hell is a top-down, bullet hell shooter following a recently deceased cowboy and his horse as he adventures through a vibrant open world. Shoot cows, dodge bullets, collect guns, solve puzzles, and befriend characters as you work towards defeating Jeff Bezos himself!

    2022ActionIndieAdventure2.99 USDSingle-playerSimilar games →
  7. 7
    Redline Protocol — Steam game cover

    Redline Protocol

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

    Redline Protocol is a fast modern-retro helicopter combat game built around low-altitude attacks, tactical objectives, wrap-around battlefields, and escalating chaos.

    ActionIndieSingle-playerSimilar games →
  8. 8
    Tanks, But No Tanks — Steam game cover

    Tanks, But No Tanks

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

    Battle your friends in this multiplayer arena shooter, where you'll ricochet bullets off of walls, collect coins, and purchase upgrades in between rounds. Use a diverse array of weapon types, ranging from deployable turrets to teleportation projectiles to cause extra mayhem on the battlefield!

    2023ActionIndieAdventure7.99 USDSingle-playerSimilar games →
  9. 9
    The Future Ends — Steam game cover

    The Future Ends

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

    In a place dominated by machines an experienced soldier has been assigned to investigate a big robotics company that has committed various crimes against humanity and take control over the machines that have gone rogue.

    2022ActionIndieAdventure1.99 USDSingle-playerSimilar games →