Co-op games like Sign of Silence: 99 Nights
Below are 8 cooperative Steam games similar to Sign of Silence: 99 Nights, 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 Sign of Silence: 99 Nights page.
Ranked picks
- 1
Solve or Die
Online Co-op alternative to Sign of Silence: 99 Nights — playable with friends.
Your family is gone, but the trail isn't cold. Hunt their abductor through shifting, ritual-scarred locations in this co-op detective horror. Solve puzzles, banish spirits, and find the truth. But stay sharp—your family might not want to be saved. Your choices, your destiny.
- 2
Corroded
Online Co-op alternative to Sign of Silence: 99 Nights — playable with friends. Shares Action and Adventure with Sign of Silence: 99 Nights.
In this creature filled, horrifying, procedurally generated world, survive by looting ruins, expanding your base, getting better gear, and staying fed. Don't get caught in the flood and survive this nightmare.
- 3
Piywebler
Online Co-op alternative to Sign of Silence: 99 Nights — playable with friends. Shares Action and Adventure with Sign of Silence: 99 Nights.
A 1–4 player co-op horror experience. Burn the books in a cursed hospital, find the keys, and escape from the entity hunting you.
- 4
Ghost Watchers
Online Co-op alternative to Sign of Silence: 99 Nights — playable with friends. Shares Adventure with Sign of Silence: 99 Nights.
Ghost Watchers is a co-op online horror game. You will explore and hunt ghosts in abandoned houses
- 5
Malum
Online Co-op alternative to Sign of Silence: 99 Nights — playable with friends. Shares Action and Adventure with Sign of Silence: 99 Nights.
Malum is the premier C-list horror game. Run from a motely collection of bizarre demons then summon in some guns to turn the tables on them. Best enjoyed with friends.
- 6
Sinister Night 2
Online Co-op alternative to Sign of Silence: 99 Nights — playable with friends. Shares Action and Adventure with Sign of Silence: 99 Nights.
Nine Streamers enter an ancient Chinese mansion, hoping to attract a huge following and become famous through livestreaming. However, two of them are tragically possessed by evil spirits. These possessed will slaughter their companions, and complete a malevolent ritual of a ghostly wedding.
- 7
Sinister Night
Online Co-op alternative to Sign of Silence: 99 Nights — playable with friends. Shares Action and Adventure with Sign of Silence: 99 Nights.
In this multiplayer survival, horror, and deduction game, eight streamers enter a mysterious old building, planning to get famous via a livestream, but two of them become possessed by evil spirits. They will kill their companions and sacrifice them at the altar to complete a sinister ritual.
- 8
MetaPhysical
Online Co-op alternative to Sign of Silence: 99 Nights — playable with friends. Shares Action and Adventure with Sign of Silence: 99 Nights.
Supernatural phenomena are on the rise. In MetaPhysical you and up to 5 other friends can go on the hunt for eerie creatures to put an end to their sinister activities! Whether it's an ordinary ghost or a demon, your task is to identify the rumbling creature and then finish it off.