Games like 坍塌世界
Games like 坍塌世界 include The King is Watching, Kingdom Two Crowns, Nordhold, Thronefall, and Age of Empires II (Retired). We matched them by the tags players give 坍塌世界 on Steam (Tower Defense, Strategy, Casual, City Builder, and Base Building): closest matches first, and among equally close ones the better-known games.

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

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

Nordhold
Shared: Tower Defense · Strategy · Base Building

Thronefall
Shared: Tower Defense · Strategy · City Builder

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

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

Rogue Tower
Shared: Tower Defense · Strategy · Casual

Manor Lords
Shared: Strategy · City Builder · Base Building

Foundation
Shared: City Builder · Strategy · Medieval

Border Pioneer
Shared: Tower Defense · Strategy · City Builder

Farthest Frontier
Shared: Strategy · City Builder · Medieval

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

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

Infection Free Zone
Shared: Base Building · Strategy · City Builder

Tower Dominion
Shared: Tower Defense · Strategy · Base Building

Emberward
Shared: Tower Defense · Strategy · Base Building

Kingdoms and Castles
Shared: City Builder · Strategy · Base Building

Lessaria: Fantasy Kingdom Sim
Shared: Strategy · City Builder · Tower Defense

Kingdoms Reborn
Shared: City Builder · Strategy · Base Building

Rise to Ruins
Shared: Tower Defense · Strategy · City Builder

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

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

Cities: Skylines
Shared: City Builder · Strategy · Simulation

Dwarf Fortress
Shared: Strategy · Base Building · City Builder