IMHO.

Games like Immunity Protocol

If Immunity Protocol is your kind of game, the closest matches are Chain of Command, Forecast Death and Micron Survivor — picked from the ranked list below. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.

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About Immunity Protocol: Pilot an immune-cell sentinel in a neon pixel-art horde-survival auto-shooter. Move manually, auto-fire evolving weapons, draft upgrades, equip symbiotes, and survive escalating pathogen swarms inside a collapsing biotech system.

2026ActionIndie5.09 USDWindowsby Ijijanbos
Immunity Protocol — Steam game cover

Players who liked Immunity Protocol also play

Steam players who put hours into Immunity Protocol also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.

  1. Chain of Command

    WHY THIS

    Top pick for Immunity Protocol fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Immunity Protocol.

    Chain of Command is a top-down arena shooter roguelike, where you control a snake-like chain of fighters that attack automatically. Choose your Commander and build your party to create high-synergy builds to crush the invading demon armies.

    2026ActionIndieSteam ↗
  2. Forecast Death

    WHY THIS

    Second-strongest match for Immunity Protocol fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Immunity Protocol.

    Survive the chaos of a bullet-heaven action game. Tear through enemy hordes, stack wild ability combos, and endure cataclysms that rewrite the rules mid-fight. The pace ramps up every minute - either you grow stronger, or you get wiped out.

    ActionStrategyIndieSteam ↗
  3. Micron Survivor

    WHY THIS

    Third-strongest match for Immunity Protocol fans by collaborative filtering across millions of Steam libraries. Shares Action with Immunity Protocol.

    Micron Survivor is a survival game with rogue-lite elements where you play as alien microorganisms under the microscope. Evolve, unlock research objectives, find symbiotic weapons, upgrade your builds, and fight hordes of terrestrial organisms to rule the microcosm.

    ActionRPGCasualSteam ↗
  4. Orbit Run

    WHY THIS

    Ranked #4 for Immunity Protocol fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Immunity Protocol.

    Orbit Run is an arcade sci-fi game with roguelike elements, in which orbiting asteroids are your only weapons. Catch asteroids and combine them to unlock their run-altering abilities. Skillfully manoeuvre to dodge attacks and land massive asteroid strikes to defeat the ever-increasing waves of foes.

    2027ActionIndieSteam ↗
  5. Nano Squadron

    WHY THIS

    Ranked #5 for Immunity Protocol fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Immunity Protocol.

    Manage your shields, evolve your ship, defend Earth. Nano Squadron is a top-down space roguelite where every run brings new upgrades and every mistake leaves you exposed.

    2026ActionIndie4.79 USDSteam ↗
  6. Steel Swarm: SURVIVOR

    WHY THIS

    Ranked #6 for Immunity Protocol fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Immunity Protocol.

    Steel Swarm: SURVIVOR is a fast-paced roguelite survivors game where you obliterate swarms with your drones. Set up formations, upgrade your drones, and overwhelm hordes of metal in each run. Take on enemy waves solo or in multiplayer co-op!

    ActionIndieSteam ↗
  7. Let Them Come: Onslaught

    WHY THIS

    Ranked #7 for Immunity Protocol fans by collaborative filtering across millions of Steam libraries. Shares Action with Immunity Protocol.

    Survive the relentless offensive of the alien horde in Let Them Come: Onslaught, a sci-fi survival roguelite. The pursuit of the perfect build and an ever-expanding arsenal of abilities are the keys to your success.

    2025Action7.99 USDDeck VerifiedSteam ↗
  8. Rhythm Storm

    WHY THIS

    Ranked #8 for Immunity Protocol fans by collaborative filtering across millions of Steam libraries. Shares Action with Immunity Protocol.

    Rhythm Storm is a roguelike bullet heaven with stunning vector graphics, rhythmic action, and overwhelming swarms of enemies. Your vehicle aims and fires freely while everything else dances and moves to the beat in this spectacular audio-visual experience.

    2025Action9.99 USDDeck VerifiedSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below Immunity Protocol at current Steam store prices.

  1. POSTAL 2

    WHY THIS

    Priced ~81% under Immunity Protocol on Steam right now. Shares Action and Indie with Immunity Protocol.

    Live a week in the life of "The POSTAL Dude"; a hapless everyman just trying to check off some chores. Buying milk, returning an overdue library book, getting Gary Coleman's autograph, what could possibly go wrong?

    2012ActionIndieAdventure0.99 USDDeck VerifiedSteam ↗
  2. Buckshot Roulette

    WHY THIS

    Priced ~41% under Immunity Protocol on Steam right now. Shares Action and Indie with Immunity Protocol.

    Play Russian roulette with a 12-gauge shotgun. Four enter. One leaves. Roll the dice with your life. Good luck!

    2024ActionIndieSimulation2.99 USDDeck PlayableSteam ↗
  3. The Test

    WHY THIS

    Priced ~61% under Immunity Protocol on Steam right now. Shares Indie with Immunity Protocol.

    You will answer a series of questions that will reveal truths from deep within. These questions may make you uncomfortable, but with great knowledge comes great sacrifice. Can you make it all the way through The Test, and if you do, are you sure you want the answers you seek?

    2020IndieAdventureSimulation1.99 USDDeck VerifiedSteam ↗
  4. Milk inside a bag of milk inside a bag of milk

    WHY THIS

    Priced ~71% under Immunity Protocol on Steam right now. Shares Indie with Immunity Protocol.

    A short story about what sort of challenges everyday little things can be. Help the girl buy milk, be the first not to disappoint her.

    2020IndieAdventure1.49 USDDeck PlayableSteam ↗
  5. Blood and Bacon

    WHY THIS

    Priced ~81% under Immunity Protocol on Steam right now. Shares Action with Immunity Protocol.

    This Co-op Shooter , has Day and Night levels, multiple maps, players will take on 25 enemy types and numerous bosses, like Gargantuan Monsters and Minibosses every 10 days as you explore, shoot and run for your life against the onslaught of porcine monstrosities.

    2016ActionAdventureCasual0.99 USDSteam ↗
  6. Crypt of the NecroDancer

    WHY THIS

    Priced ~41% under Immunity Protocol on Steam right now. Shares Action and Indie with Immunity Protocol.

    Crypt of the NecroDancer is an award winning hardcore roguelike rhythm game. Move to the music and deliver beatdowns to the beat! Groove to the epic Danny Baranowsky soundtrack, or select songs from your own MP3 collection!

    2015ActionIndieRPG2.99 USDDeck VerifiedSteam ↗
  7. Super Hexagon

    WHY THIS

    Priced ~41% under Immunity Protocol on Steam right now. Shares Action and Indie with Immunity Protocol.

    Super Hexagon is a minimal action game by Terry Cavanagh, with music by Chipzel.

    2012ActionIndie2.99 USDDeck VerifiedSteam ↗
  8. Nodebuster

    WHY THIS

    Priced ~41% under Immunity Protocol on Steam right now. Shares Indie with Immunity Protocol.

    Nodebuster is a short, experimental incremental game about busting nodes and destroying reality.

    2024StrategyIndieSimulation2.99 USDDeck PlayableSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Immunity Protocol.

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

    2018ActionIndieFree To PlayFreeSteam ↗
  2. Awaria

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Immunity Protocol.

    Awaria is a short game about working in haunted maintenance tunnels.

    2024ActionIndieFree To PlayFreeDeck PlayableSteam ↗
  3. The Expendabros

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Immunity Protocol.

    The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.

    2014ActionIndieAdventureFreeDeck VerifiedSteam ↗
  4. Iron Snout

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Immunity Protocol.

    Iron Snout is a fast, colorful and brutal fighting game in which you will be helping a piglet fight for its life against hordes of wolves.

    2016ActionIndieFree To PlayFreeDeck PlayableSteam ↗
  5. UNBEATABLE [white label]

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Immunity Protocol.

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

    2021ActionIndieAdventureFreeDeck PlayableSteam ↗
  6. Star Fetchers

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Immunity Protocol.

    The introduction to a wild ride with gangsters and deep state conspiracy theories

    2020ActionIndieAdventureFreeDeck PlayableSteam ↗
  7. Magic Archery

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Immunity Protocol.

    Train a commoner to become the greatest archer in this short incremental game! Increase your stats, gather wealth from quests, buy upgrades, and infuse your arrows with magic.

    2024IndieSimulationRPGFreeDeck PlayableSteam ↗
  8. Eternal Senia

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Immunity Protocol.

    Thoughts and expectations ARPG

    2015ActionIndieRPGFreeDeck PlayableSteam ↗

Frequently asked about Immunity Protocol

How much does Immunity Protocol cost?
Immunity Protocol is listed on Steam at 5.09 USD (current store price; Steam sales may reduce this temporarily).
What games are most similar to Immunity Protocol?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Immunity Protocol are Chain of Command, Forecast Death, Micron Survivor.
Who developed Immunity Protocol?
Immunity Protocol was developed by Ijijanbos.

imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Immunity Protocol.

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24 Games Like Immunity Protocol — Ranked for 2026 · imho.run