Games like Planet Hoarders
Games like Planet Hoarders include Lethal Company, Content Warning, Pacify, Escape the Backrooms, and MIMESIS. We matched them by the tags players give Planet Hoarders on Steam (Online Co-Op, Survival Horror, Action-Adventure, Dark, and Capitalism): closest matches first, and among equally close ones the better-known games.

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

Content Warning
Shared: Online Co-Op · Procedural Generation · Exploration

Pacify
Shared: Online Co-Op · Survival Horror · Dark

Escape the Backrooms
Shared: Online Co-Op · Survival Horror · Exploration

MIMESIS
Shared: Online Co-Op · Survival Horror · Funny

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

Backrooms: Escape Together
Shared: Online Co-Op · Survival Horror · Procedural Generation

Lunch Lady
Shared: Online Co-Op · Survival Horror · Dark

PEAK
Shared: Online Co-Op · Adventure · Exploration

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

The Headliners
Shared: Online Co-Op · Action-Adventure · Funny

DEVOUR
Shared: Online Co-Op · Survival Horror · Dark

Escape from Playtime
Shared: Online Co-Op · Survival Horror · Dark

R.E.P.O.
Shared: Online Co-Op · Stealth · Funny

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

Five Nights at Freddy's: Security Breach
Shared: Survival Horror · Stealth · Exploration

Inside the Backrooms
Shared: Survival Horror · Online Co-Op · Dark

PANICORE
Shared: Online Co-Op · Survival Horror · Stealth

The Outlast Trials
Shared: Survival Horror · Dark · Stealth

Amnesia: Rebirth
Shared: Action-Adventure · Survival Horror · Dark

Resident Evil Requiem
Shared: Survival Horror · Action-Adventure · Action

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

Species: Unknown
Shared: Online Co-Op · Survival Horror · Stealth

Bendy and the Dark Revival
Shared: Survival Horror · Dark · Action