Games like Backrooms: Blackhole
Games like Backrooms: Blackhole include Chained Together, Lethal Company, Wobbly Life, Ready or Not, and RV There Yet?. We matched them by the tags players give Backrooms: Blackhole on Steam (Adventure, Tactical, Casual, Logic, and Simulation): closest matches first, and among equally close ones the better-known games.

Chained Together
Shared: Adventure · Co-op · Casual

Lethal Company
Shared: Co-op · Horror · Funny

Wobbly Life
Shared: Adventure · Co-op · Simulation

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

RV There Yet?
Shared: Co-op · Adventure · Funny

Escape the Backrooms
Shared: Co-op · Horror · Adventure

Don't Starve Together
Shared: Co-op · Adventure · Simulation

Gang Beasts
Shared: Co-op · Casual · Funny

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

Human Fall Flat
Shared: Co-op · Adventure · Funny

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

Castle Crashers®
Shared: Co-op · Adventure · Funny

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

Forza Horizon 5
Shared: Racing · Adventure · Simulation

Garry's Mod
Shared: Casual · Funny · Simulation

Slime Rancher
Shared: Adventure · Casual · Simulation

Viscera Cleanup Detail
Shared: Simulation · Co-op · Funny

Liars Bar
Shared: Casual · Co-op · Funny

Backrooms: Escape Together
Shared: Co-op · Horror · Adventure

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

Need for Speed™ Heat
Shared: Racing · Adventure · Co-op

Golf With Your Friends
Shared: Casual · Co-op · Funny

Warhammer 40,000: Space Marine 2
Shared: Co-op · Adventure · Sci-fi

Plague Inc: Evolved
Shared: Simulation · Tactical · Casual