Single-player games like Breach Signal
Below are 8 single-player Steam games similar to Breach Signal, 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 Breach Signal page.
Ranked picks
- 1
Give Us A Sign
Single-player alternative to Breach Signal — playable solo, no multiplayer required. 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.
- 2
Phasmonauts
Single-player alternative to Breach Signal — playable solo, no multiplayer required. 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.
- 3
HAUNTMATES
Single-player alternative to Breach Signal — playable solo, no multiplayer required. 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.
- 4
Ritual Tides
Single-player alternative to Breach Signal — playable solo, no multiplayer required. 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.
- 5
Pacify
Single-player alternative to Breach Signal — playable solo, no multiplayer required. 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.
- 6
Ghost Janitors
Single-player alternative to Breach Signal — playable solo, no multiplayer required. 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?
- 7
Apartment No 129
Single-player alternative to Breach Signal — playable solo, no multiplayer required. 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.
- 8
School 666
Single-player alternative to Breach Signal — playable solo, no multiplayer required. 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.