Games like Dwarven Rampart
Games like Dwarven Rampart include The King is Watching, They Are Billions, Age of Darkness: Final Stand, Tower Dominion, and Kingdom Two Crowns. We matched them by the tags players give Dwarven Rampart on Steam (Tower Defense, RTS, Base Building, Fantasy, and Dark Fantasy): closest matches first, and among equally close ones the better-known games.

The King is Watching
Shared: Tower Defense · Base Building · RTS

They Are Billions
Shared: Base Building · RTS · Tower Defense

Age of Darkness: Final Stand
Shared: Tower Defense · RTS · Base Building

Tower Dominion
Shared: Tower Defense · Base Building · RTS

Kingdom Two Crowns
Shared: Tower Defense · Base Building · City Builder

Nordhold
Shared: Tower Defense · Strategy · Dark Fantasy

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

Kingdoms and Castles
Shared: City Builder · Resource Management · Strategy

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

Mindustry
Shared: Tower Defense · Base Building · RTS

Manor Lords
Shared: Base Building · Strategy · City Builder

Total War: WARHAMMER III
Shared: RTS · Strategy · Fantasy

Against the Storm
Shared: Base Building · Strategy · City Builder

Dwarf Fortress
Shared: Base Building · Strategy · City Builder

Farthest Frontier
Shared: Strategy · City Builder · Resource Management

Stronghold Crusader: Definitive Edition
Shared: Strategy · Tower Defense · City Builder

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

Becastled
Shared: Base Building · RTS · Strategy

Frostpunk
Shared: Strategy · City Builder · Resource Management

Thronefall
Shared: Tower Defense · Strategy · Base Building

The Lost Village
Shared: Base Building · Resource Management · Strategy

Stronghold Crusader HD (2012)
Shared: Base Building · City Builder · Strategy

Stronghold HD (2012)
Shared: Tower Defense · City Builder · Base Building

Foundation
Shared: Strategy · City Builder · Resource Management