IMHO.

Single-player games like Agtnan: Monster Shutdown Sequence

Below are 8 single-player Steam games similar to Agtnan: Monster Shutdown Sequence, 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 Agtnan: Monster Shutdown Sequence page.

Ranked picks

  1. 1
    Alien Weapon Test Grounds — Steam game cover

    Alien Weapon Test Grounds

    Single-player alternative to Agtnan: Monster Shutdown Sequence — playable solo, no multiplayer required. Shares Action with Agtnan: Monster Shutdown Sequence.

    Alien weapons with unique physics await in this fast-paced FPS. Battle waves of enemies across diverse landscapes, lighting, and weather. Beware the unstable space-time continuum.

    2024ActionIndieEarly AccessSingle-playerSimilar games →
  2. 2
    The Last Salvage Squad — Steam game cover

    The Last Salvage Squad

    Single-player alternative to Agtnan: Monster Shutdown Sequence — playable solo, no multiplayer required. Shares Action with Agtnan: Monster Shutdown Sequence.

    Battle enemy forces reminiscent of alien weapons from retro sci-fi works in this single-player 2.5D FPS.

    2026Action8.99 USDSingle-playerSimilar games →
  3. 3
    Syndrome — Steam game cover

    Syndrome

    Single-player alternative to Agtnan: Monster Shutdown Sequence — playable solo, no multiplayer required. Shares Action with Agtnan: Monster Shutdown Sequence.

    Syndrome, a sci-fi survival horror game that places you in a living hell inside a doomed starship. Find out what happened to your lost crew. Run. Hide. Fight. Survive.

    2016ActionAdventure19.99 USDSingle-playerSimilar games →
  4. 4
    Drunken Robot Pornography — Steam game cover

    Drunken Robot Pornography

    Single-player alternative to Agtnan: Monster Shutdown Sequence — playable solo, no multiplayer required. Shares Action with Agtnan: Monster Shutdown Sequence.

    Bullet-hell, boss-battle, first-person shooter, with giant-robots, martinis and jetpacks. YES. Drink the cocktails. Fight the titans. Make your own Titans. Drink your friend's cocktails.

    2014ActionIndie14.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    Call of Duty®: Black Ops III — Steam game cover

    Call of Duty®: Black Ops III

    Single-player alternative to Agtnan: Monster Shutdown Sequence — playable solo, no multiplayer required. Shares Action with Agtnan: Monster Shutdown Sequence.

    Call of Duty®: Black Ops III Zombies Chronicles Edition includes the full base game plus the Zombies Chronicles content expansion.

    2015ActionAdventure59.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Crysis — Steam game cover

    Crysis

    Single-player alternative to Agtnan: Monster Shutdown Sequence — playable solo, no multiplayer required. Shares Action with Agtnan: Monster Shutdown Sequence.

    Adapt to Survive — An epic story thrusts players into an ever-changing environment, forcing them to adapt their tactics and approach to conquer battlefields ranging from newly frozen jungle to zero-gravity alien environments. Suit up! — A high-tech Nanosuit allows gamers to augment their abilities in real time on the battlefield.

    2008Action29.99 USDSingle-playerSimilar games →
  7. 7
    Call of Duty®: Infinite Warfare — Steam game cover

    Call of Duty®: Infinite Warfare

    Single-player alternative to Agtnan: Monster Shutdown Sequence — playable solo, no multiplayer required. Shares Action with Agtnan: Monster Shutdown Sequence.

    Infinite Warfare delivers three unique game modes: Campaign, Multiplayer, and Zombies.

    2016ActionAdventure59.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Crysis Warhead® — Steam game cover

    Crysis Warhead®

    Single-player alternative to Agtnan: Monster Shutdown Sequence — playable solo, no multiplayer required. Shares Action with Agtnan: Monster Shutdown Sequence.

    Pulse-racing new installment from 2007's PC Game of the Year*: Play as Sergeant Sykes and experience a whole new side of the battle. A standard combat mission behind enemy lines becomes critical when you discover your enemies have captured something of vital importance to the ensuing war.

    2008Action4.99 USDDeck PlayableSingle-playerSimilar games →