Games like Annihilation Plan
Games like Annihilation Plan include Left 4 Dead 2, R.E.P.O., PUBG: BATTLEGROUNDS, DayZ, and PEAK. We matched them by the tags players give Annihilation Plan on Steam (Online Co-Op, Post-apocalyptic, Survival, Multiplayer, and Shooter): closest matches first, and among equally close ones the better-known games.
Left 4 Dead 2
Shared: Online Co-Op · Multiplayer · Shooter
R.E.P.O.
Shared: Online Co-Op · Multiplayer · Horror
PUBG: BATTLEGROUNDS
Shared: Survival · Shooter · Multiplayer
DayZ
Shared: Survival · Online Co-Op · Post-apocalyptic
PEAK
Shared: Online Co-Op · Multiplayer · Co-op
Dead by Daylight
Shared: Multiplayer · Online Co-Op · Horror
MISERY
Shared: Post-apocalyptic · Online Co-Op · Survival
Content Warning
Shared: Online Co-Op · Horror · Multiplayer
Left 4 Dead
Shared: Multiplayer · Online Co-Op · Co-op
Escape the Backrooms
Shared: Online Co-Op · Multiplayer · Horror
7 Days to Die
Shared: Survival · Multiplayer · Post-apocalyptic
Subnautica 2
Shared: Survival · Multiplayer · Horror
Killing Floor 2
Shared: Online Co-Op · Multiplayer · Post-apocalyptic
Grounded
Shared: Survival · Multiplayer · Online Co-Op
Lethal Company
Shared: Online Co-Op · Horror · Co-op
ARC Raiders
Shared: Multiplayer · Online Co-Op · Post-apocalyptic
Valheim
Shared: Online Co-Op · Survival · Multiplayer
Back 4 Blood
Shared: Online Co-Op · Multiplayer · Shooter
Sons Of The Forest
Shared: Survival · Multiplayer · Co-op
Phasmophobia
Shared: Online Co-Op · Multiplayer · Horror
Backrooms: Escape Together
Shared: Online Co-Op · Multiplayer · Horror
Dying Light
Shared: Online Co-Op · Horror · Survival
The Long Drive
Shared: Multiplayer · Survival · Post-apocalyptic
Don't Starve Together
Shared: Survival · Multiplayer · Online Co-Op