Games like Polterparty
Games like Polterparty include Lethal Company, Inside the Backrooms, Content Warning, Zort, and Lunch Lady. We matched them by the tags players give Polterparty on Steam (Horror, Team-Based, Funny, Exploration, and Cute): closest matches first, and among equally close ones the better-known games.

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

Inside the Backrooms
Shared: Horror · Puzzle · Exploration

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

Zort
Shared: Horror · Funny · Online Co-Op

Lunch Lady
Shared: Horror · Team-Based · Online Co-Op

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

The Headliners
Shared: Horror · Funny · Online Co-Op

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

Turnip Boy Commits Tax Evasion
Shared: Exploration · Funny · Puzzle

Stray
Shared: Exploration · Cute · Horror

Slime Rancher
Shared: Exploration · Cute · Funny

Pacify
Shared: Horror · Online Co-Op · Exploration

The Exit 8
Shared: Horror · Exploration · Puzzle

Dead by Daylight
Shared: Horror · Team-Based · Online Co-Op

Liars Bar
Shared: Funny · Online Co-Op · Tabletop

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

TUNIC
Shared: Exploration · Puzzle · Cute

Phasmophobia
Shared: Horror · Online Co-Op · Dark

Little Nightmares II
Shared: Horror · Puzzle · Dark

Labyrinthine
Shared: Horror · Online Co-Op · Puzzle

MIMESIS
Shared: Funny · Online Co-Op · Exploration

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

PILGRIM
Shared: Horror · Exploration · PvE

SOMA
Shared: Horror · Exploration · Dark