Games like Silicon City
Games like Silicon City include Cities: Skylines, Cities: Skylines II, Tropico 6, Prison Architect, and Planet Zoo. We matched them by the tags players give Silicon City on Steam (City Builder, Building, Sandbox, Management, and Modern): closest matches first, and among equally close ones the better-known games.

Cities: Skylines
Shared: City Builder · Building · Management

Cities: Skylines II
Shared: City Builder · Building · Sandbox

Tropico 6
Shared: City Builder · Management · Economy

Prison Architect
Shared: Building · Sandbox · City Builder

Planet Zoo
Shared: Management · Building · Sandbox

Transport Fever 2
Shared: Management · City Builder · Sandbox

Jurassic World Evolution
Shared: Building · Management · Sandbox

Jurassic World Evolution 2
Shared: Building · Management · Sandbox

Transport Fever
Shared: City Builder · Sandbox · Building

Planet Coaster
Shared: Building · Sandbox · Management

Foundation
Shared: City Builder · Sandbox · Management

Manor Lords
Shared: City Builder · Building · Management

Kingdoms and Castles
Shared: City Builder · Management · Sandbox

Software Inc.
Shared: Management · Building · Sandbox

NIMBY Rails
Shared: Management · Building · Sandbox

Planet Coaster 2
Shared: Sandbox · Building · City Builder

Mad Games Tycoon 2
Shared: Management · City Builder · Economy

Citystate II
Shared: City Builder · Building · Economy

Supermarket Simulator
Shared: Management · Economy · Building

SimCity™ 4 Deluxe Edition
Shared: City Builder · Building · Sandbox

Urbek City Builder
Shared: City Builder · Building · Management

Banished
Shared: City Builder · Sandbox · Building

Anno 1800
Shared: City Builder · Economy · Sandbox

Urbek City Builder: Prologue
Shared: City Builder · Building · Sandbox