Games like RollerCoaster Tycoon® 3: Platinum
Games like RollerCoaster Tycoon® 3: Platinum include Cities: Skylines, Planet Coaster, Cities: Skylines II, Planet Zoo, and Jurassic World Evolution. We matched them by the tags players give RollerCoaster Tycoon® 3: Platinum on Steam (Simulation, Management, Sandbox, Building, and Strategy): closest matches first, and among equally close ones the better-known games.

Cities: Skylines
Shared: Simulation · Management · Building

Planet Coaster
Shared: Simulation · Management · Building

Cities: Skylines II
Shared: Simulation · Sandbox · Building

Planet Zoo
Shared: Management · Simulation · Building

Jurassic World Evolution
Shared: Simulation · Building · Management

Jurassic World Evolution 2
Shared: Management · Simulation · Building

Prison Architect
Shared: Simulation · Sandbox · Building

Two Point Hospital
Shared: Simulation · Management · Building

Garry's Mod
Shared: Sandbox · Building · Simulation

Tropico 6
Shared: Simulation · Management · Strategy

Transport Fever 2
Shared: Simulation · Management · Strategy

RollerCoaster Tycoon®: Deluxe
Shared: Simulation · Management · Sandbox

Tropico 4
Shared: Simulation · Management · Strategy

Planet Coaster 2
Shared: Simulation · Sandbox · Building

RollerCoaster Tycoon® 2: Triple Thrill Pack
Shared: Simulation · Management · Sandbox

Manor Lords
Shared: Simulation · Strategy · Management

Game Dev Tycoon
Shared: Simulation · Management · Strategy

Anno 1800
Shared: Simulation · Strategy · Sandbox

Two Point Campus
Shared: Simulation · Management · Building

Supermarket Simulator
Shared: Simulation · Management · Singleplayer

Startup Company
Shared: Simulation · Management · Strategy

Tropico 5
Shared: Simulation · Strategy · Sandbox

RimWorld
Shared: Sandbox · Management · Strategy

Let's School
Shared: Management · Simulation · Sandbox