Games like Trade City
Games like Trade City include Farthest Frontier, Stronghold: Definitive Edition, Manor Lords, Cities: Skylines, and Kingdoms and Castles. We matched them by the tags players give Trade City on Steam (City Builder, RTS, Diplomacy, Strategy, and Economy): closest matches first, and among equally close ones the better-known games.

Farthest Frontier
Shared: City Builder · Strategy · Building

Stronghold: Definitive Edition
Shared: City Builder · Strategy · RTS

Manor Lords
Shared: City Builder · Strategy · Base Building

Cities: Skylines
Shared: City Builder · Strategy · Building

Kingdoms and Castles
Shared: City Builder · Strategy · Economy

Anno 1800
Shared: City Builder · Strategy · Economy

Frostpunk
Shared: City Builder · Strategy · Building

Anno 2070™
Shared: City Builder · Strategy · RTS

Workers & Resources: Soviet Republic
Shared: City Builder · Strategy · Economy

Anno 117: Pax Romana
Shared: City Builder · Strategy · RTS

Age of Empires III: Definitive Edition
Shared: RTS · Strategy · City Builder

Stronghold Crusader: Definitive Edition
Shared: City Builder · Strategy · RTS

Age of Empires II (Retired)
Shared: RTS · Strategy · City Builder

Pharaoh™: A New Era
Shared: City Builder · Economy · Building

Becastled
Shared: City Builder · Strategy · RTS

Foundation
Shared: City Builder · Strategy · Economy

Rise of Industry
Shared: Strategy · City Builder · Economy

They Are Billions
Shared: Strategy · RTS · City Builder

Against the Storm
Shared: City Builder · Strategy · Building

Stronghold HD (2012)
Shared: City Builder · Economy · RTS

Cities: Skylines II
Shared: City Builder · Economy · Strategy

Medieval Kingdom Wars
Shared: RTS · City Builder · Strategy

Prison Architect
Shared: City Builder · Strategy · Building

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