Games like Guillotine
Games like Guillotine include Among Us, Dead by Daylight, R.E.P.O., Left 4 Dead 2, and Escape the Backrooms. We matched them by the tags players give Guillotine on Steam (Social Deduction, Multiplayer, Online Co-Op, Survival, and Funny): closest matches first, and among equally close ones the better-known games.

Among Us
Shared: Social Deduction · Multiplayer · Online Co-Op

Dead by Daylight
Shared: Multiplayer · Horror · Online Co-Op

R.E.P.O.
Shared: Multiplayer · Online Co-Op · Horror

Left 4 Dead 2
Shared: Multiplayer · Online Co-Op · Survival

Escape the Backrooms
Shared: Multiplayer · Online Co-Op · Horror

PUBG: BATTLEGROUNDS
Shared: Survival · Multiplayer · Online Co-Op

Liars Bar
Shared: Multiplayer · Online Co-Op · Casual

Lethal Company
Shared: Online Co-Op · Horror · Funny

Dying Light
Shared: Online Co-Op · Horror · Survival

Don't Starve Together
Shared: Multiplayer · Survival · Online Co-Op

DayZ
Shared: Survival · Online Co-Op · Multiplayer

RV There Yet?
Shared: Multiplayer · Online Co-Op · Funny

Sons Of The Forest
Shared: Multiplayer · Survival · Horror

Content Warning
Shared: Online Co-Op · Multiplayer · Horror

Subnautica 2
Shared: Multiplayer · Survival · Horror

Blood and Bacon
Shared: Multiplayer · Funny · Online Co-Op

Rust
Shared: Multiplayer · Survival · First-Person

PEAK
Shared: Multiplayer · Online Co-Op · First-Person

Sneak Out
Shared: Multiplayer · Horror · Survival

Pacify
Shared: Multiplayer · Online Co-Op · Horror

Backrooms: Escape Together
Shared: Multiplayer · Online Co-Op · Horror

DEVOUR
Shared: Multiplayer · Online Co-Op · Horror

Counter-Strike 2
Shared: Multiplayer · Online Co-Op · Team-Based

Witch It
Shared: Multiplayer · Funny · Online Co-Op