IMHO.

Games like Ammossum

If Ammossum is your kind of game, the closest matches are Rhyolite, MAD TOYS and Erosion — 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 Ammossum: Build an endlessly upgradable weapon! Evolve projectiles into unstoppable firepower in this action roguelike. Fight through hordes of infected beasts, hunt down the source of the plague, and feel the thrill of bloody shootouts filled with bullets, explosions, and acid. Can you survive the madness?

ActionIndieWindowsby West Glade
Ammossum — Steam game cover

Players who liked Ammossum also play

Steam players who put hours into Ammossum 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. Rhyolite

    WHY THIS

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

    Rhyolite throws your crew of up to 4 players into a pressure cooker of broken train mechanisms, complex enemy attacks, and an ever-shifting puzzle of resource and attention management as you capture ghosts on a haunted steampunk railway.

    2025ActionIndieAdventure4.99 USDDeck VerifiedSteam ↗
  2. MAD TOYS

    WHY THIS

    Second-strongest match for Ammossum fans by collaborative filtering across millions of Steam libraries. Shares Action with Ammossum.

    Mad Toys is a FPS set in a world of toys. Defend, manage, and upgrade your weapons to fend off the invading enemy forces. Battle through waves of enemies and face challenging boss fights to save the world.

    ActionSteam ↗
  3. Erosion

    WHY THIS

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

    Your daughter's been kidnapped. Every death costs you a decade. Explore a roguelike open world where your actions reshape the timeline. Join a cult, steal a ride, gamble Cheddar. Collect 100+ weapons and abilities, demolish destructible voxel dungeons. Can you save her before time steals her away?

    ActionAdventureSteam ↗
  4. Roguebound Pirates

    WHY THIS

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

    Loot, upgrade & dominate! Your inventory IS your ship in this action roguelike. Customize weapons, create game-breaking synergies, and claim your place as the most overpowered pirate across the seas!

    2026ActionIndieAdventureSteam ↗
  5. Soulcery: Deck of Shadows

    WHY THIS

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

    An action roguelike fused with deck-building combat. Steal enemy abilities to shape your battle deck and unleash relentless, zero-cooldown combos.

    2026ActionIndieSteam ↗
  6. Umbra Survivors

    WHY THIS

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

    The first 3D Gothic Survivors-like on Steam. Thousands of enemies. One survivor. No mercy. Fight through endless hordes, roll rare card upgrades and forge broken builds. Every level-up can change your entire run. Multiple playable characters. Epic bosses. Seasonal events.

    ActionIndieSimulationSteam ↗
  7. VOID/BREAKER

    WHY THIS

    Ranked #7 for Ammossum fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Ammossum.

    Fast paced Bullet hell Roguelite FPS 🔴 Fight relentless machines driven by a hostile AI. Escape an endless cycle. Craft infinite weapon variants with deep gun modding. Forge deadly synergies. Carve your way out through enviro destruction /BREAK THE SYSTEM /BREAK FREE

    2025ActionSportsIndie19.99 USDDeck VerifiedSteam ↗
  8. Apocalypse Express

    WHY THIS

    Ranked #8 for Ammossum fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Ammossum.

    Conduct, upgrade and repair your train through endless waves of enemies in a post-apocalyptic setting. In this action management roguelike, the player decides to embark on a journey through the wasteland looking to fulfill the dream of seeing the remains of the outside world.

    2026ActionStrategyIndie5.99 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 Ammossum.

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

    2018ActionIndieFree To PlayFreeSteam ↗
  2. ENA: Dream BBQ

    WHY THIS

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

    Experience surreal environments and inexplicable characters as ENA in a new wild world.

    2025IndieAdventureFreeDeck VerifiedSteam ↗
  3. Indigo Park: Chapter 1

    WHY THIS

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

    Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.

    2024ActionIndieAdventureFreeDeck PlayableSteam ↗
  4. The Looker

    WHY THIS

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

    You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.

    2022IndieFreeDeck PlayableSteam ↗
  5. Awaria

    WHY THIS

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

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

    2024ActionIndieFree To PlayFreeDeck PlayableSteam ↗
  6. The Expendabros

    WHY THIS

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

    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 ↗
  7. Iron Snout

    WHY THIS

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

    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 ↗
  8. Star Fetchers

    WHY THIS

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

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

    2020ActionIndieAdventureFreeDeck PlayableSteam ↗

Frequently asked about Ammossum

What games are most similar to Ammossum?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Ammossum are Rhyolite, MAD TOYS, Erosion.
Who developed Ammossum?
Ammossum was developed by West Glade and published by Yahaha Games.

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 Ammossum.

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