Co-op games like Passenger Zero
Below are 8 cooperative Steam games similar to Passenger Zero, 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 Passenger Zero page.
Ranked picks
- 1
Shift At Midnight
Online Co-op alternative to Passenger Zero — playable with friends. Shares Indie and Simulation with Passenger Zero.
An online co-op detective horror for up to 3 players. Work together across randomly generated shifts to investigate your customers, as some are only pretending to be human. Make one mistake, and you’ll be forced to board up, set traps, and hide.
- 2
WE ARE SO DEAD
Online Co-op alternative to Passenger Zero — playable with friends. Shares Indie and Adventure with Passenger Zero.
A co-op seance communications game where one of you died first, and only you can see what's killing the others. Your only voice is a Ouija board your friends keep misreading. Guide them down 9 floors of a haunted house and banish the demon before sunrise. 2-6 players. Brain required.
- 3
Marrowood
Online Co-op alternative to Passenger Zero — playable with friends. Shares Action and Indie with Passenger Zero.
Haunted by the suppressed memories of your childhood, you receive a letter from the town you grew up in. They need you to rebuild your family's farm. It's time to remember, welcome home.
- 4
THE OCCULT PROTOCOL
Online Co-op alternative to Passenger Zero — playable with friends. Shares Action and Indie with Passenger Zero.
THE OCCULT PROTOCOL is a paranormal investigation horror game for solo or online co-op. Gather evidence, identify the entity, survive its hunts, and prepare the right ritual to banish it.
- 5
Deepscape Inc
Online Co-op alternative to Passenger Zero — playable with friends. Shares Action and Indie with Passenger Zero.
2 to 4 player co-op horror game. You wake up marked with an ID number you can't see on your own back. Only your fellow inmates can read it. Find each other, share your numbers, reach your validation rooms, and get out before whatever roams the halls finds you first." en francais
- 6
Escape Haunted Mansion
Online Co-op alternative to Passenger Zero — playable with friends. Shares Action and Indie with Passenger Zero.
Escape Haunted Mansion is a horrific multiplayer deduction game for 3 to 10 players with voice chat. The Haunteds must complete tasks to escape, while the Cursed seek to eliminate them discreetly.
- 7
FEARMATES
Online Co-op alternative to Passenger Zero — playable with friends. Shares Action and Indie with Passenger Zero.
Fearmates is a 1–4 player co-op psychological horror game. As a group of friends, you explore locations with paranormal activity and uncover the truth behind the events using your own equipment.
- 8
Rot Together
Online Co-op alternative to Passenger Zero — playable with friends. Shares Action and Indie with Passenger Zero.
A first-person co-op horror game for up to four players set in a medieval world. Explore a module map and fight a mysterious cult. Brew potions, kill monsters, chat with your friends. Survival is not guaranteed!