IMHO.

Single-player games like Unbroken K2

Below are 9 single-player Steam games similar to Unbroken K2, 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 Unbroken K2 page.

Ranked picks

  1. 1
    Bloody Knuckles Street Boxing — Steam game cover

    Bloody Knuckles Street Boxing

    Single-player alternative to Unbroken K2 — playable solo, no multiplayer required. Shares Action and Sports with Unbroken K2.

    The Sweet Science Meets The STREETS!

    2024ActionSportsStrategy14.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Russian Drunken Boxers — Steam game cover

    Russian Drunken Boxers

    Single-player alternative to Unbroken K2 — playable solo, no multiplayer required. Shares Sports and Simulation with Unbroken K2.

    You are waiting for the fights of drunk Russian boxers. Russian people love to fight in front of bears with balalaika!

    2021SportsIndieSimulation24.99 USDSingle-playerSimilar games →
  3. 3
    Golden Gloves VR — Steam game cover

    Golden Gloves VR

    Single-player alternative to Unbroken K2 — playable solo, no multiplayer required. Shares Action and Sports with Unbroken K2.

    Golden Gloves VR Boxing Game (Officially Licensed)

    2023ActionSportsIndie24.99 USDSingle-playerSimilar games →
  4. 4
    MMA Career Simulator — Steam game cover

    MMA Career Simulator

    Single-player alternative to Unbroken K2 — playable solo, no multiplayer required. Shares Sports and Simulation with Unbroken K2.

    Create your MMA fighter, develop their skills, build winning game plans, and promote yourself to a global MMA superstar. Every fight is simulated based on your preparation and in-fight decisions, where smart choices can mean the difference between victory and defeat.

    SportsSimulationSingle-playerSimilar games →
  5. 5
    True Boxing VR — Steam game cover

    True Boxing VR

    Single-player alternative to Unbroken K2 — playable solo, no multiplayer required. Shares Action and Sports with Unbroken K2.

    True Boxing VR brings real life boxing experience into Virtual Reality. With super realistic game play animations, and movements the game is designed to be as close to a real life experience as possible. You will learn the basics and tactics of boxing, and use these skills to beat the opponents.

    2024ActionSportsEarly Access10.99 USDSingle-playerSimilar games →
  6. 6
    Boxing GO — Steam game cover

    Boxing GO

    Single-player alternative to Unbroken K2 — playable solo, no multiplayer required. Shares Action and Sports with Unbroken K2.

    Welcome to Boxing GO: Where Champions Rise! Get ready to play the electrifying clash of boxing in the ring as Boxing GO brings you the most thrilling boxing matches.

    2024ActionSports1.99 USDSingle-playerSimilar games →
  7. 7
    Underground: World War — Steam game cover

    Underground: World War

    Single-player alternative to Unbroken K2 — playable solo, no multiplayer required. Shares Action with Unbroken K2.

    A brand new game inspired by the Def Jam series. Create your own fighter or play as some of your favorite rappers in this over the top fighting game.

    2026ActionIndieEarly AccessSingle-playerSimilar games →
  8. 8
    Boxing Simulator — Steam game cover

    Boxing Simulator

    Single-player alternative to Unbroken K2 — playable solo, no multiplayer required. Shares Action and Sports with Unbroken K2.

    Build your gym, train your boxers and make them stronger to beat stronger opponents.

    2025ActionSportsIndie7.99 USDSingle-playerSimilar games →
  9. 9
    Pak Sung Bo Wing Chun — Steam game cover

    Pak Sung Bo Wing Chun

    Single-player alternative to Unbroken K2 — playable solo, no multiplayer required. Shares Action and Sports with Unbroken K2.

    PSBLWC. is a Fighting Beat ’em up Style with a touch of a Brawler and Survival Game where you try to defeat Dr.Chaos and Colonel Mason. The Fighting Base is build on many Mix Martial Arts Style like Wing Chun most and Pak Sung Bo mix in an MMA , where you can Attack any Enemy from any Direction.

    2021ActionSportsIndie4.99 USDSingle-playerSimilar games →