IMHO.

Single-player games like AMYGDALA: Prelude

Below are 8 single-player Steam games similar to AMYGDALA: Prelude, 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 AMYGDALA: Prelude page.

Ranked picks

  1. 1
    Beneath the Permafrost — Steam game cover

    Beneath the Permafrost

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

    The world has ended, but the storm remains. Experience survival-horror within the ruins of a fractured city. Stay warm. Fight the dead. Find the Fountain. Will you be buried beneath the eternal blizzard? Or will you cheat death itself? Every bullet, every match, and every decision counts.

    2026ActionIndieSingle-playerSimilar games →
  2. 2
    Incoherence: Dark Rooms — Steam game cover

    Incoherence: Dark Rooms

    Single-player alternative to AMYGDALA: Prelude — playable solo, no multiplayer required. Shares Indie and Adventure with AMYGDALA: Prelude.

    You awaken in a strange yet familiar room with multiple doors, with no memory of how you got there. As you explore, you discover this place you are trapped in is built from interconnected rooms drawn from your own memories. To escape, you'll need to uncover the truth, before it consumes you...

    2027IndieAdventureSingle-playerSimilar games →
  3. 3
    Left 4 Dead 2 — Steam game cover

    Left 4 Dead 2

    Single-player alternative to AMYGDALA: Prelude — playable solo, no multiplayer required. Shares Action with AMYGDALA: Prelude.

    Set in the zombie apocalypse, Left 4 Dead 2 is a co-operative action horror FPS takes you and your friends through the cities, swamps and cemeteries of the Deep South, from Savannah to New Orleans across five expansive campaigns.

    2009Action9.99 USDDeck VerifiedSingle-playerSimilar games →
  4. 4
    Syndrome — Steam game cover

    Syndrome

    Single-player alternative to AMYGDALA: Prelude — playable solo, no multiplayer required. Shares Action and Adventure with AMYGDALA: Prelude.

    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 →
  5. 5
    PATHOGEN X — Steam game cover

    PATHOGEN X

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

    An immersive, first-person survival shooter where you step into the boots of Special Agent Aiden Clark. Dive deep into a hazardous underground laboratory, tasked with the perilous mission of neutralizing a biological menace and securing a pathogen sample.

    2024ActionIndieAdventure9.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    My Friendly Neighborhood — Steam game cover

    My Friendly Neighborhood

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

    Something scary is happening with everyone's favorite Saturday morning puppet show, The Friendly Neighborhood! Play as Gordon, a repairman sent to get to the bottom of this disturbing dilemma. Fend off puppets and solve puzzles in this survival horror adventure.

    2023ActionIndieAdventure29.99 USDDeck VerifiedSingle-playerSimilar games →
  7. 7
    Half-Life 2 — Steam game cover

    Half-Life 2

    Single-player alternative to AMYGDALA: Prelude — playable solo, no multiplayer required. Shares Action with AMYGDALA: Prelude.

    Reawakened from stasis in the occupied metropolis of City 17, Gordon Freeman is joined by Alyx Vance as he leads a desperate human resistance. Experience the landmark first-person shooter packed with immersive world-building, boundary-pushing physics, and exhilarating combat.

    2004Action9.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Contagion — Steam game cover

    Contagion

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

    Contagion isn't your average Zombie Shooter but instead takes a more realistic and different approach to the popular genre with unique characters, environments, weapons, items, and a built in system that makes every round completely unpredictable with resources, objectives, and paths ever changing.

    2013ActionIndieAdventure3.99 USDDeck VerifiedSingle-playerSimilar games →