Games like Theme Park Simulator
Games like Theme Park Simulator include Garry's Mod, PowerWash Simulator, Slime Rancher, Who's Your Daddy?!, and Liars Bar. We matched them by the tags players give Theme Park Simulator on Steam (Simulation, Casual, Funny, Online Co-Op, and Management): closest matches first, and among equally close ones the better-known games.

Garry's Mod
Shared: Funny · Casual · Sandbox

PowerWash Simulator
Shared: Casual · Simulation · First-Person

Slime Rancher
Shared: Cute · Funny · First-Person

Who's Your Daddy?!
Shared: Funny · Simulation · First-Person

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

Bloons TD 6
Shared: Online Co-Op · Casual · Singleplayer

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

Waterpark Simulator
Shared: Simulation · Management · Sandbox

Grocery Store Simulator
Shared: Simulation · Online Co-Op · Management

Supermarket Simulator
Shared: Simulation · Management · First-Person

Two Point Hospital
Shared: Simulation · Management · Funny

Game Dev Tycoon
Shared: Simulation · Management · Casual

Fast Food Simulator
Shared: Simulation · Online Co-Op · Management

Goat Simulator
Shared: Simulation · Funny · Casual

Farming Simulator 22
Shared: Simulation · Management · Co-op

Wobbly Life
Shared: Simulation · Funny · Casual

Golf It!
Shared: Casual · Funny · Simulation

Overcooked! 2
Shared: Online Co-Op · Casual · Funny

Cooking Simulator
Shared: Simulation · Funny · Singleplayer

House Flipper
Shared: Simulation · Casual · Singleplayer

How to Fish
Shared: Online Co-Op · First-Person · Co-op

PC Building Simulator
Shared: Simulation · Management · First-Person

Farm Together
Shared: Simulation · Casual · Online Co-Op

Totally Accurate Battle Simulator
Shared: Simulation · Funny · Sandbox