Games like Haunted Halloween
Games like Haunted Halloween include Lethal Company, Escape the Backrooms, Left 4 Dead 2, Dying Light, and Dead by Daylight. We matched them by the tags players give Haunted Halloween on Steam (Adventure, Casual, Online Co-Op, Horror, and Survival Horror): closest matches first, and among equally close ones the better-known games.

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

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

Left 4 Dead 2
Shared: Co-op · Online Co-Op · FPS

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

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

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

Ready or Not
Shared: FPS · Co-op · Horror

Blood and Bacon
Shared: Horror · Action · Online Co-Op

The Forest
Shared: Horror · Adventure · Survival Horror

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

Zort
Shared: Online Co-Op · Horror · Co-op

Inside the Backrooms
Shared: Horror · Survival Horror · Adventure

Back 4 Blood
Shared: Online Co-Op · Co-op · FPS

GTFO
Shared: Online Co-Op · Horror · Co-op

Pacify
Shared: Online Co-Op · Horror · Co-op

Outlast
Shared: Horror · Survival Horror · First-Person

Resident Evil Requiem
Shared: Horror · Survival Horror · Action

Resident Evil Village
Shared: Horror · Survival Horror · Action

BIGFOOT
Shared: Horror · Online Co-Op · Survival Horror

Nuclear Nightmare
Shared: Online Co-Op · Horror · Survival Horror

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

RV There Yet?
Shared: Adventure · Online Co-Op · Co-op

Space Hulk: Deathwing - Enhanced Edition
Shared: Co-op · Online Co-Op · Adventure

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