Games like ValeGuard
Games like ValeGuard include Kingdom Two Crowns, Thronefall, They Are Billions, The King is Watching, and Foundation. We matched them by the tags players give ValeGuard on Steam (Tower Defense, Indie, Strategy, Base Building, and Turn-Based): closest matches first, and among equally close ones the better-known games.

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

Thronefall
Shared: Tower Defense · Strategy · City Builder

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

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

Foundation
Shared: Strategy · City Builder · Medieval

Cities: Skylines
Shared: City Builder · Strategy · Management

Tavern Master
Shared: Strategy · Indie · Management

Bloons TD 6
Shared: Tower Defense · Strategy · Singleplayer

Manor Lords
Shared: Strategy · Base Building · City Builder

Nordhold
Shared: Tower Defense · Strategy · Indie

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

Banished
Shared: Strategy · City Builder · Indie

Rogue Tower
Shared: Tower Defense · Strategy · Base Building

Prison Architect
Shared: Base Building · Strategy · City Builder

Becastled
Shared: Strategy · Base Building · City Builder

Mini Motorways
Shared: Strategy · Indie · Management

RimWorld
Shared: Base Building · Strategy · Singleplayer

Farthest Frontier
Shared: Strategy · City Builder · Medieval

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

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

Going Medieval
Shared: Strategy · Base Building · City Builder

Creeper World 3: Arc Eternal
Shared: Tower Defense · Indie · Strategy

Dwarf Fortress
Shared: Base Building · Strategy · City Builder

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