IMHO.

Games like Breach Signal

If Breach Signal is your kind of game, the closest matches are Give Us A Sign, Phasmonauts and HAUNTMATES — 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 Breach Signal: Breach Signal is a 1-6 player co-op cosmic horror game. As a recruit of the FNA, lead expeditions into strange places and investigate mysterious anomalies that threaten our reality.

2027ActionIndieAdventureWindowsby O5 Interactive
Breach Signal — Steam game cover

Players who liked Breach Signal also play

Steam players who put hours into Breach Signal 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. Give Us A Sign

    WHY THIS

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

    Give Us A Sign is a 1-4 player co-op psychological horror simulation. As an investigator, use specialized equipment to detect entities and gather evidence in haunted locations. Every word you speak shapes the haunting around you. Once you ask for a sign, there is no turning back.

    ActionIndieAdventureSteam ↗
  2. Phasmonauts

    WHY THIS

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

    Phasmonauts is a 4 player local co-op supernatural roguelite. Cryptid sightings are on the rise! It’s up to you and your friends to invent ghost-hunting equipment to solve the mystery and fight these supernatural creatures.

    2026ActionIndieAdventureSteam ↗
  3. HAUNTMATES

    WHY THIS

    Third-strongest match for Breach Signal fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Breach Signal.

    Co-op horror investigation game across multiple maps. Enter procedurally generated environments, use your equipment to gather clues, and identify the entity. Watch your back, because monsters are hunting you down.

    2026ActionIndieAdventure6.39 USDSteam ↗
  4. Ritual Tides

    WHY THIS

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

    Ritual Tides is a story rich, psychological horror game set on the dark, atmospheric, isolated British island of Hortus. Explore the island, uncover its dark past, loot food, ammunition and supplies, evade the cult of the Fallow Parish, as you fight for survival against Lovecraftian horrors.

    ActionIndieAdventureSteam ↗
  5. Pacify

    WHY THIS

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

    An online co-op horror game where you pacify, weaken and capture supernatural creatures for PAH Inc. Each level has a different story, unique monsters, and multiple endings. Play single player or together with up to 6 friends. Includes proximity voice chat with fun effects.

    2019ActionStrategyIndie4.99 USDDeck VerifiedSteam ↗
  6. Ghost Janitors

    WHY THIS

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

    Ghost Janitors is a multiplayer psychological horror game for 1-4 players. Your job? Cleaning haunted houses while avoiding terrifying monsters. Ready to face the spine-tingling challenge with your team?

    2025ActionIndieAdventure8.99 USDDeck PlayableSteam ↗
  7. Apartment No 129

    WHY THIS

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

    Emir, who has an interest in mysterious events, steps alone into the abandoned apartment known as "Apartment No 129" to trace the trail of a paranormal event that occurred in 2009 and shook the country. However, he will find himself in an unexpected confrontation within this horror apartment.

    2024ActionIndieAdventure7.99 USDSteam ↗
  8. School 666

    WHY THIS

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

    School 666 is a 1-4 Player Co-op Survival Horror. You must escape this endless nightmare. Try to identify the correct path and survive the anomalies in this endless school. Some extremely powerful anomalies will catch you to their dimensions. Explore the reason why you are here... and don't die.

    2025ActionIndieAdventure9.99 USDDeck PlayableSteam ↗

Free alternatives

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

  1. Doki Doki Literature Club!

    WHY THIS

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

    The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.

    2017IndieFree To PlayCasualFreeDeck PlayableSteam ↗
  2. Life is Strange - Episode 1

    WHY THIS

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

    Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.

    2015ActionAdventureFreeDeck PlayableSteam ↗
  3. Ultimate Custom Night

    WHY THIS

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

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

    2018ActionIndieFree To PlayFreeSteam ↗
  4. ENA: Dream BBQ

    WHY THIS

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

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

    2025IndieAdventureFreeDeck VerifiedSteam ↗
  5. 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 Breach Signal.

    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 ↗
  6. STRAFTAT

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Breach Signal.

    STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.

    2024ActionFreeDeck PlayableSteam ↗
  7. The Looker

    WHY THIS

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

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

    2022IndieFreeDeck PlayableSteam ↗
  8. Sheepy: A Short Adventure

    WHY THIS

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

    A Short Handcrafted Pixel Art Platformer that follows Sheepy, an abandoned plushy brought to life. Sheepy: A Short Adventure is the first short game from MrSuicideSheep.

    2024IndieAdventureFree To PlayFreeDeck PlayableSteam ↗

Frequently asked about Breach Signal

Does Breach Signal have multiplayer or co-op?
Yes — Breach Signal supports multi-player play according to its Steam store listing (Multi-player, Online Co-op, LAN Co-op).
What games are most similar to Breach Signal?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Breach Signal are Give Us A Sign, Phasmonauts, HAUNTMATES.
Who developed Breach Signal?
Breach Signal was developed by O5 Interactive.

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 Breach Signal.

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