Games like Wool at the Gates
Games like Wool at the Gates include Thronefall, Kingdom Two Crowns, Bee Island, Kingdom Rush 6: Genesis TD, and Age of Darkness: Final Stand. We matched them by the tags players give Wool at the Gates on Steam (Tower Defense, Strategy, City Builder, Minimalist, and Medieval): closest matches first, and among equally close ones the better-known games.

Thronefall
Shared: Tower Defense · Strategy · City Builder

Kingdom Two Crowns
Shared: Tower Defense · City Builder · Minimalist

Bee Island
Shared: Tower Defense · Strategy · City Builder

Kingdom Rush 6: Genesis TD
Shared: Tower Defense · Strategy · Medieval

Age of Darkness: Final Stand
Shared: Tower Defense · Strategy · Action RTS

Rogue Tower
Shared: Tower Defense · Strategy · Minimalist

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

Border Pioneer
Shared: Tower Defense · Strategy · City Builder

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

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

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

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

Farthest Frontier
Shared: Strategy · City Builder · Medieval

Becastled
Shared: Strategy · City Builder · Medieval

Kingdom Rush - Tower Defense
Shared: Tower Defense · Strategy · Action

ISLANDERS
Shared: Strategy · City Builder · Minimalist

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

Foundation
Shared: City Builder · Strategy · Medieval

Manor Lords
Shared: Strategy · City Builder · Base Building

Bloons TD 6
Shared: Tower Defense · Strategy · 3D

Kingdom Rush Vengeance - Tower Defense
Shared: Tower Defense · Strategy · Medieval

Kingdom Rush Origins - Tower Defense
Shared: Tower Defense · Strategy · Medieval

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

Kingdom Rush 5: Alliance TD
Shared: Tower Defense · Strategy · Medieval