IMHO.

Free games like Survivalist: Invisible Strain

Below are 9 free-to-play Steam games similar to Survivalist: Invisible Strain, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Survivalist: Invisible Strain page.

Ranked picks

  1. 1
    Ultimate Custom Night — Steam game cover

    Ultimate Custom Night

    Free-to-play alternative to Survivalist: Invisible Strain — no purchase or trial window. Shares Action and Indie with Survivalist: Invisible Strain.

    Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!

    2018ActionIndieFree To PlayFreeFree to playSimilar games →
  2. 2
    UNBEATABLE [white label] — Steam game cover

    UNBEATABLE [white label]

    Free-to-play alternative to Survivalist: Invisible Strain — no purchase or trial window. Shares Action and Indie with Survivalist: Invisible Strain.

    A young girl learns a song. An exclusive side-story set in the world of D-CELL GAMES' upcoming rhythm-adventure.

    2021ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →
  3. 3
    The Riftbreaker: Prologue — Steam game cover

    The Riftbreaker: Prologue

    Free-to-play alternative to Survivalist: Invisible Strain — no purchase or trial window. Shares Action and Strategy with Survivalist: Invisible Strain.

    The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.

    2020ActionStrategyIndieFreeDeck PlayableFree to playSimilar games →
  4. 4
    The Life and Suffering of Sir Brante — Chapter 1&2 — Steam game cover

    The Life and Suffering of Sir Brante — Chapter 1&2

    Free-to-play alternative to Survivalist: Invisible Strain — no purchase or trial window. Shares Strategy and Indie with Survivalist: Invisible Strain.

    A narrative-driven hardcore RPG set in a gritty world where the gods are real. Set out on a challenging lifetime journey, where every choice you make has a price to pay and consequence to it. Will you become an inquisitor, a judge, or conspire against the old order? Dare to decide!

    2020StrategyIndieAdventureFreeFree to playSimilar games →
  5. 5
    The Test: Secrets of the Soul 2 — Steam game cover

    The Test: Secrets of the Soul 2

    Free-to-play alternative to Survivalist: Invisible Strain — no purchase or trial window. Shares Indie and Adventure with Survivalist: Invisible Strain.

    You will answer questions that will reveal things deep within. Some will be uncomfortable, but with great knowledge comes great sacrifice. Can you make it all the way through The Test, and are you SURE you want the answers you seek? For it is time to once again unlock "Secrets of the Soul..."

    2023IndieAdventureSimulationFreeFree to playSimilar games →
  6. 6
    SCP – Containment Breach — Steam game cover

    SCP – Containment Breach

    Free-to-play alternative to Survivalist: Invisible Strain — no purchase or trial window. Shares Action and Indie with Survivalist: Invisible Strain.

    A procedural first-person horror adventure. You are on your own after something goes terribly wrong in this top-secret containment facility. Collect items to aid in your escape and try to uncover the truth, as horror lurks behind every door. Can you make it out alive?

    2026ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →
  7. 7
    Dota 2 — Steam game cover

    Dota 2

    Free-to-play alternative to Survivalist: Invisible Strain — no purchase or trial window. Shares Action and Strategy with Survivalist: Invisible Strain.

    Every day, millions of players worldwide enter battle as one of over a hundred Dota heroes. And no matter if it's their 10th hour of play or 1,000th, there's always something new to discover. With regular updates that ensure a constant evolution of gameplay, features, and heroes, Dota 2 has taken on a life of its own.

    2013ActionStrategyFree To PlayFreeDeck PlayableFree to playSimilar games →
  8. 8
    Warframe — Steam game cover

    Warframe

    Free-to-play alternative to Survivalist: Invisible Strain — no purchase or trial window. Shares Action and RPG with Survivalist: Invisible Strain.

    Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game

    2013ActionRPGFree To PlayFreeDeck VerifiedFree to playSimilar games →
  9. 9
    Dysterra — Steam game cover

    Dysterra

    Free-to-play alternative to Survivalist: Invisible Strain — no purchase or trial window. Shares Action and Adventure with Survivalist: Invisible Strain.

    On a future post-apocalyptic Earth, build, craft, and loot other players’ bases to survive long enough to board the rocket and escape the dangerous robots and mercenaries that inhabit Ararat Island. Manipulate the weather and use earthquakes to change when the server wipe occurs in DYSTERRA!

    2025ActionAdventureSimulationFreeDeck PlayableFree to playSimilar games →