Games like Master of Realms
Games like Master of Realms include Dungeon Alchemist, Planet Coaster 2, Tabletop Simulator, Cities: Skylines, and Cities: Skylines II. We matched them by the tags players give Master of Realms on Steam (Tabletop, Design & Illustration, Sandbox, 3D, and Procedural Generation): closest matches first, and among equally close ones the better-known games.

Dungeon Alchemist
Shared: Tabletop · RPG · Procedural Generation

Planet Coaster 2
Shared: Sandbox · 3D · City Builder

Tabletop Simulator
Shared: Tabletop · Sandbox · Simulation

Cities: Skylines
Shared: City Builder · Sandbox · Simulation

Cities: Skylines II
Shared: Sandbox · City Builder · Simulation

House Flipper
Shared: Design & Illustration · Sandbox · Simulation

TaleSpire
Shared: Tabletop · RPG · Sandbox

Totally Accurate Battle Simulator
Shared: Sandbox · Simulation · 3D

MMORPG Tycoon 2
Shared: Sandbox · City Builder · Game Development

FlowScape
Shared: Design & Illustration · Sandbox · Software

Tropico 5
Shared: Sandbox · City Builder · Simulation

Mount & Blade II: Bannerlord
Shared: Sandbox · RPG · Strategy

RimWorld
Shared: Sandbox · Strategy · Simulation

鬼谷八荒 Tale of Immortal
Shared: Sandbox · RPG · Simulation

Foundation
Shared: Sandbox · City Builder · Simulation

The Scroll of Taiwu : Beyond The Dome
Shared: Sandbox · RPG · Strategy

Banished
Shared: City Builder · Sandbox · Simulation

Stonehearth
Shared: Sandbox · City Builder · Simulation

My Dream Setup
Shared: Design & Illustration · Sandbox · Simulation

Dyson Sphere Program
Shared: Sandbox · City Builder · Automation

Timberborn
Shared: Sandbox · City Builder · Automation

Canvas of Kings
Shared: Design & Illustration · Sandbox · Procedural Generation

Manor Lords
Shared: City Builder · Sandbox · Simulation

Towns
Shared: Sandbox · City Builder · RPG