Games like Mushroom Simulator Co-op
Games like Mushroom Simulator Co-op include R.E.P.O., MECCHA CHAMELEON, Who's Your Daddy?!, Don't Starve Together, and Among Us. We matched them by the tags players give Mushroom Simulator Co-op on Steam (Funny, Voice Control, Simulation, Survival, and Online Co-Op): closest matches first, and among equally close ones the better-known games.

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

MECCHA CHAMELEON
Shared: Funny · Multiplayer · Online Co-Op

Who's Your Daddy?!
Shared: Funny · Simulation · Multiplayer

Don't Starve Together
Shared: Co-op · Survival · Multiplayer

Among Us
Shared: Multiplayer · Online Co-Op · Funny

Dead by Daylight
Shared: Co-op · Multiplayer · Online Co-Op

Overcooked! 2
Shared: Co-op · Multiplayer · Online Co-Op

Chained Together
Shared: Co-op · Funny · Online Co-Op

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

Garry's Mod
Shared: Funny · Multiplayer · Simulation

Witch It
Shared: Funny · Multiplayer · Co-op

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

Party Animals
Shared: Funny · Co-op · Multiplayer

HELLDIVERS™ 2
Shared: Online Co-Op · Co-op · Multiplayer

Liars Bar
Shared: Co-op · Multiplayer · Funny

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

Gang Beasts
Shared: Funny · Co-op · Multiplayer

Draw & Guess
Shared: Funny · Multiplayer · Online Co-Op

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

Valheim
Shared: Survival · Online Co-Op · Multiplayer

BattleBlock Theater®
Shared: Co-op · Funny · Comedy

Super Battle Golf
Shared: Co-op · Online Co-Op · Multiplayer

Untitled Goose Game
Shared: Funny · Co-op · Multiplayer

ICARUS
Shared: Survival · Multiplayer · Co-op