Games like RADIOACTIVE INC.
Games like RADIOACTIVE INC. include Escape the Backrooms, Left 4 Dead 2, Dead by Daylight, R.E.P.O., and Phasmophobia. We matched them by the tags players give RADIOACTIVE INC. on Steam (Multiplayer, Horror, Survival Horror, Action, and Escape Room): closest matches first, and among equally close ones the better-known games.

Escape the Backrooms
Shared: Multiplayer · Horror · Survival Horror

Left 4 Dead 2
Shared: Multiplayer · Co-op · Action

Dead by Daylight
Shared: Multiplayer · Horror · Survival Horror

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

Phasmophobia
Shared: Horror · Multiplayer · Online Co-Op

Backrooms: Escape Together
Shared: Multiplayer · Horror · Survival Horror

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

GTFO
Shared: Horror · Multiplayer · Online Co-Op

Pacify
Shared: Horror · Multiplayer · Online Co-Op

BIGFOOT
Shared: Multiplayer · Horror · Survival Horror

The Outlast Trials
Shared: Multiplayer · Horror · Survival Horror

Inside the Backrooms
Shared: Multiplayer · Horror · Survival Horror

DEVOUR
Shared: Horror · Multiplayer · Survival Horror

PEAK
Shared: Multiplayer · Online Co-Op · Co-op

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

No More Room in Hell 2
Shared: Multiplayer · Survival Horror · Online Co-Op

How to Fish
Shared: Multiplayer · Online Co-Op · Co-op

Back 4 Blood
Shared: Multiplayer · Online Co-Op · Horror

Blood and Bacon
Shared: Multiplayer · Action · Horror

Left 4 Dead
Shared: Multiplayer · Horror · Action

Killing Floor
Shared: Horror · Multiplayer · Co-op

PAYDAY 2
Shared: Action · Multiplayer · Co-op

Sons Of The Forest
Shared: Multiplayer · Survival Horror · Horror

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