Games like DSS 2: War Industry
Games like DSS 2: War Industry include Age of History 3, Age of Empires II (Retired), Manor Lords, Anno 1800, and Crusader Kings III. We matched them by the tags players give DSS 2: War Industry on Steam (Wargame, City Builder, Medieval, Economy, and RTS): closest matches first, and among equally close ones the better-known games.

Age of History 3
Shared: Wargame · RTS · Grand Strategy

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

Manor Lords
Shared: City Builder · Strategy · Grand Strategy

Anno 1800
Shared: City Builder · Economy · Strategy

Crusader Kings III
Shared: Medieval · Strategy · Grand Strategy

Medieval Kingdom Wars
Shared: Medieval · City Builder · RTS

Foundation
Shared: City Builder · Medieval · Strategy

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

Farthest Frontier
Shared: City Builder · Medieval · Strategy

Europa Universalis V
Shared: Grand Strategy · Wargame · Economy

Banished
Shared: City Builder · Strategy · Medieval

Knights of Honor II: Sovereign
Shared: Medieval · Strategy · RTS

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

Europa Universalis IV
Shared: Grand Strategy · Wargame · Strategy

Sid Meier's Civilization VII
Shared: City Builder · Grand Strategy · Strategy

Stronghold Crusader 2
Shared: City Builder · Medieval · Strategy

Stronghold 3 Gold
Shared: City Builder · Medieval · Strategy

Anno 2070™
Shared: City Builder · Strategy · RTS

Total War: WARHAMMER II
Shared: Strategy · RTS · Grand Strategy

Kingdoms and Castles
Shared: City Builder · Strategy · Economy

Grand Ages: Medieval
Shared: Medieval · Strategy · Economy

Against the Storm
Shared: City Builder · Strategy · Grand Strategy

Cities: Skylines
Shared: City Builder · Strategy · Economy

Kingdoms Reborn
Shared: City Builder · Economy · Strategy