IMHO.

Single-player games like Operation Insanity

Below are 10 single-player Steam games similar to Operation Insanity, 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 Operation Insanity page.

Ranked picks

  1. 1
    Skyborn:IronWings — Steam game cover

    Skyborn:IronWings

    Single-player alternative to Operation Insanity — playable solo, no multiplayer required. Shares Action and Adventure with Operation Insanity.

    A reimagined 3D arcade shooter that transforms the classic vertical scrolling formula with full spatial depth, immersive air-to-ground combat, and intense bullet hell action.

    ActionIndieAdventureSingle-playerSimilar games →
  2. 2
    War Link - 2111 AD — Steam game cover

    War Link - 2111 AD

    Single-player alternative to Operation Insanity — playable solo, no multiplayer required. Shares Action and Adventure with Operation Insanity.

    War Link has evolved, and so has the best online FPS on Virtual Reality

    2024ActionAdventure1.99 USDSingle-playerSimilar games →
  3. 3
    Hitler is My Crush: Love and Fascism — Steam game cover

    Hitler is My Crush: Love and Fascism

    Single-player alternative to Operation Insanity — playable solo, no multiplayer required. Shares Action and Adventure with Operation Insanity.

    Hitler is My Crush: Love and Fascism is a crazy love story that defies logic, common sense and everything you knew about the world. You play as a girl madly in love with... Hitler.

    2024ActionIndieAdventure0.99 USDSingle-playerSimilar games →
  4. 4
    Commandos Pro Simulator — Steam game cover

    Commandos Pro Simulator

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

    Superfast action-packed shooter to play in single mode or multiplayer with your friends! Play from first person view or switch to third view at anytime during this hardcore game. Select to play for special commandos forces or for bad terrorists criminals. No time - start shooting left and right!

    2021ActionIndie1.99 USDSingle-playerSimilar games →
  5. 5
    Gun Reflex VR — Steam game cover

    Gun Reflex VR

    Single-player alternative to Operation Insanity — playable solo, no multiplayer required. Shares Action and Adventure with Operation Insanity.

    Realistic VR shooter game where you try to complete all the floors by killing your enemies with limited ammunition. It also features zombie, shooting range, and weapon carnival modes.

    2025ActionIndieAdventure9.99 USDSingle-playerSimilar games →
  6. 6
    Starfighter Arduxim — Steam game cover

    Starfighter Arduxim

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

    Strap into the cockpit of your Arduxim fighter and take on enemy starships in this first-person tactical space shooter. Harks back to the classic Wing Commander games. Playable in VR or on monitor.

    2016ActionIndieSimulation3.99 USDSingle-playerSimilar games →
  7. 7
    Hitler is my crush — Steam game cover

    Hitler is my crush

    Single-player alternative to Operation Insanity — playable solo, no multiplayer required. Shares Action and Adventure with Operation Insanity.

    Hitler is my Crush is an absurd adventure in which you will plunge into the world of black humor and satire. You have to take on the role of a girl who is in love with Hitler and does not want to share him, and go on an absurd journey with Hitler, who is captured by saboteurs.

    2023ActionIndieAdventure0.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Thunder Wolves — Steam game cover

    Thunder Wolves

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

    When this “wolf pack” strikes, you hear the thunder roll. The Thunder Wolves attack from the air. They are mercenaries, and the best helicopter pilots in the world. Every one of them is ready for action at all times—and ready to fight evil, wherever it lurks.

    2013ActionIndieCasual1.99 USDDeck VerifiedSingle-playerSimilar games →
  9. 9
    Tactical Warfare Simulator — Steam game cover

    Tactical Warfare Simulator

    Single-player alternative to Operation Insanity — playable solo, no multiplayer required. Shares Adventure with Operation Insanity.

    Experience Adrenalin fueled dogfights over the western front.

    2020IndieAdventureSimulation29.99 USDSingle-playerSimilar games →
  10. 10
    A Million Lightyears Beyond — Steam game cover

    A Million Lightyears Beyond

    Single-player alternative to Operation Insanity — playable solo, no multiplayer required. Shares Action and Adventure with Operation Insanity.

    Hunted to the edge of extinction humanity goes through a mysterious ancient gate. Will you go beyond the mysterious gate to discover the secrets of our past and the hope for our future, as we begin our new life in a far off galaxy?

    ActionIndieAdventureSingle-playerSimilar games →