Games like The Referee Committee
Games like The Referee Committee include Totally Accurate Battle Simulator, Game Dev Tycoon, Plague Inc: Evolved, Papers, Please, and RimWorld. We matched them by the tags players give The Referee Committee on Steam (Simulation, Sports, Strategy, Sandbox, and 2D): closest matches first, and among equally close ones the better-known games.

Totally Accurate Battle Simulator
Shared: Simulation · Sandbox · Strategy

Game Dev Tycoon
Shared: Simulation · Strategy · 2D

Plague Inc: Evolved
Shared: Simulation · Strategy · Indie

Papers, Please
Shared: Simulation · Indie · Multiple Endings

RimWorld
Shared: Strategy · Sandbox · Simulation

911 Operator
Shared: Simulation · Strategy · Indie

Football Manager 26
Shared: Simulation · Sports · Strategy

Cities: Skylines
Shared: Simulation · Strategy · Sandbox

Prison Architect
Shared: Simulation · Sandbox · Strategy

Russian Life Simulator
Shared: Simulation · 2D · Strategy

Death and Taxes
Shared: Simulation · Strategy · Story Rich

Reus
Shared: Strategy · Simulation · Sandbox

Beholder
Shared: Strategy · Simulation · Choices Matter

People Playground
Shared: Sandbox · Simulation · 2D

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

Undertale
Shared: Story Rich · Multiple Endings · Choices Matter

Beholder 2
Shared: Simulation · Strategy · Choices Matter

EA SPORTS FC™ 26
Shared: Sports · Simulation · Football (Soccer)

Cities: Skylines II
Shared: Simulation · Sandbox · Strategy

Emily is Away Too
Shared: Simulation · Indie · Choices Matter

Planet Coaster
Shared: Simulation · Sandbox · Strategy

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