Games like A Modest Legacy
Games like A Modest Legacy include Age of Empires II (Retired), Foundation, Thronefall, Stronghold Crusader HD (2012), and Stronghold: Definitive Edition. We matched them by the tags players give A Modest Legacy on Steam (Medieval, RTS, Minimalist, Base Building, and Relaxing): closest matches first, and among equally close ones the better-known games.

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

Foundation
Shared: Medieval · City Builder · Strategy

Thronefall
Shared: Medieval · Minimalist · City Builder

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

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

Farthest Frontier
Shared: Medieval · City Builder · Strategy

Kingdom Two Crowns
Shared: Minimalist · Medieval · Base Building

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

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

Becastled
Shared: Medieval · Base Building · RTS

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

Manor Lords
Shared: Base Building · City Builder · Strategy

They Are Billions
Shared: Base Building · RTS · Strategy

Frostpunk
Shared: City Builder · Strategy · Resource Management

Kingdoms Reborn
Shared: City Builder · Base Building · Medieval

The King is Watching
Shared: RTS · Base Building · Strategy

Tavern Master
Shared: Medieval · Strategy · Relaxing

Age of Empires: Definitive Edition
Shared: RTS · Strategy · Base Building

Stronghold HD (2012)
Shared: Medieval · City Builder · Real Time Tactics

Stronghold 3 Gold
Shared: Medieval · RTS · City Builder

Banished
Shared: City Builder · Strategy · Medieval

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

Diplomacy is Not an Option
Shared: Medieval · Base Building · RTS

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