Co-op games like Sinister Night 2
Below are 8 cooperative Steam games similar to Sinister Night 2, 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 Sinister Night 2 page.
Ranked picks
- 1
Castle of Mist
Online Co-op alternative to Sinister Night 2 — playable with friends. Shares Action and Strategy with Sinister Night 2.
Castle of Mist is a first-person shooter with Roguelike random elements set in a medieval-style adventure. Players control different characters, choose various items to create unique playstyles, and ultimately defeat various monsters and the dragon attacking the castle to achieve victory.
- 2
Sincognito
Online Co-op alternative to Sinister Night 2 — playable with friends. Shares Action and Strategy with Sinister Night 2.
An social deduction investigation horror game where one of you is secretly possessed by a Deadly Sin. Use stealth and proximity chat to cooperate or deceive as you gather clues and compare findings to deduce which Sin is haunting the castle.
- 3
Strange Town
Online Co-op alternative to Sinister Night 2 — playable with friends. Shares Action and Strategy with Sinister Night 2.
Strange Town is a very enjoyable multiplayer survival game with a role-playing theme. The game can be played with 3-8 players. In the discussion phase, try to find out who the Werewolf is, and in the anger phase, try to survive! The traitor among you will appear as the Werewolf!
- 4
Catolonizer
Online Co-op alternative to Sinister Night 2 — playable with friends. Shares Strategy and RPG with Sinister Night 2.
Catolonizer is an online social deduction game for up to 15 players. Complete tasks to earn coins, buy items from the Merchant, and use your secret ability at night. Outsmart the others and fulfill your unique win condition!
- 5
Deep Dark Space
Online Co-op alternative to Sinister Night 2 — playable with friends. Shares Action with Sinister Night 2.
Deep Dark Space is a 4-player online co-op horror experience set in space. Explore abandoned stations, gather clues, and uncover the monster lurking in the dark. Trust no one — paranoia runs high as hidden betrayals threaten your survival.
- 6
MindHunt
Online Co-op alternative to Sinister Night 2 — playable with friends. Shares Strategy and Casual with Sinister Night 2.
MindHunt is a solo/multiplayer detective like game (1-10 players), where you as an agent try to find out which androids are infected in order to shut them down! Well, if you are the infected one, you better blend with other androids and complete all tasks necessary!
- 7
Sinister Night
Online Co-op alternative to Sinister Night 2 — playable with friends. Shares Action and Adventure with Sinister Night 2.
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
Guillotine
Online Co-op alternative to Sinister Night 2 — playable with friends. Shares Adventure and Casual with Sinister Night 2.
Guillotine is a multiplayer game of social deduction, with a pinch of survival. You're in a tavern in the woods, but someone is a necromorph hungry for human meat. Guillotine the necromorph, or get eaten alive.