Co-op games like Mama's Sleeping Angels
Below are 10 cooperative Steam games similar to Mama's Sleeping Angels, ranked by player overlap and content similarity. Every pick supports cooperative play — online co-op, LAN co-op, or shared/split-screen — so you can play with friends right out of the box. imho.run pulls from the same Steam category data Valve uses internally, so "Co-op" here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Mama's Sleeping Angels page.
Ranked picks
- 1
Sorry, That Notice Guarantees Nothing
Online Co-op alternative to Mama's Sleeping Angels — playable with friends. Shares Action and Indie with Mama's Sleeping Angels.
A 2–8 player online rule-deduction horror game. Cooperate, outmaneuver your crew, and uncover real safety rules and escape clues. Survive timed rules and unpredictable environmental threats. Optional Infested Mode gives you another reason to question whom to trust.
- 2
Project: Doors
Online Co-op alternative to Mama's Sleeping Angels — playable with friends. Shares Action and Indie with Mama's Sleeping Angels.
What if every door opened into a world that shouldn’t exist? Project: Doors throws your squad into a shifting maze packed with traps, anomalies, and creatures you’d rather not meet. Stick together, solve strange puzzles - and try to escape in one piece.
- 3
Acatalepsy
Online Co-op alternative to Mama's Sleeping Angels — playable with friends. Shares Indie and Adventure with Mama's Sleeping Angels.
Welcome to Acatalepsy, a new take on the liminal space experience. Progress deeper into varying liminal spaces with your team. Complete various tasks to continue forward, dive deeper, and don't expect to survive for long. You aren't alone in these spaces; nowhere is safe.
- 4
ZONE L.O.S.T.
Online Co-op alternative to Mama's Sleeping Angels — playable with friends. Shares Action and Indie with Mama's Sleeping Angels.
YOUR BODY IS YOUR WEAKNESS. A four-player co-op horror game that puts you in the shoes of the chief scientists of a research facility. Your sole objective is to carry out the self-destruct plan and escape the facility.
- 5
NO CLEAN, NO EXIT
Online Co-op alternative to Mama's Sleeping Angels — playable with friends. Shares Action and Indie with Mama's Sleeping Angels.
A 1-6 player online co-op horror game about cleaning. Scrub the floors, haul out the trash and exterminate the man-eating bugs nesting in an abandoned house. The truck does not leave until the place is spotless.
- 6
Midnight Hotel
Online Co-op alternative to Mama's Sleeping Angels — playable with friends. Shares Indie with Mama's Sleeping Angels.
Midnight Hotel is a cooperative survival game for multiple players, where you take on the role of staff at a terrifying hotel operating exclusively during the night hours. Check in guests, manage the property, keep the hotel running - and survive until dawn.
- 7
Nifland
Online Co-op alternative to Mama's Sleeping Angels — playable with friends. Shares Action and Indie with Mama's Sleeping Angels.
Nifland is a surreal multiplayer horror game with social deduction, set inside a paranormal dream beneath the ocean. Maintain a decaying deep-sea station, survive the entities roaming its halls, and uncover the traitor hiding among your crew before the dream consumes you all.
- 8
Soul Maze
Online Co-op alternative to Mama's Sleeping Angels — playable with friends. Shares Action and Indie with Mama's Sleeping Angels.
Explore purgatory's maze together, collect soul fragments, and try to escape. Every failed round forces the group to sacrifice one of their own. They come back to hunt you and sabotage your escape. The more you fail, the more hunters gather. How many of you will make it out?
- 9
Lethal Company
Online Co-op alternative to Mama's Sleeping Angels — playable with friends. Shares Action and Indie with Mama's Sleeping Angels.
A co-op horror about scavenging at abandoned moons to sell scrap to the Company.
- 10
R.E.P.O.
Online Co-op alternative to Mama's Sleeping Angels — playable with friends. Shares Action with Mama's Sleeping Angels.
An online co-op horror game with up to 6 players. Locate valuable, fully physics-based objects and handle them with care as you retrieve and extract to satisfy your creator's desires.