Games like Port Authority
Games like Port Authority include Mini Motorways, Mini Metro, Fly Corp, 911 Operator, and Game Dev Tycoon. We matched them by the tags players give Port Authority on Steam (Simulation, Casual, Strategy, Management, and Transportation): closest matches first, and among equally close ones the better-known games.

Mini Motorways
Shared: Simulation · Strategy · Casual

Mini Metro
Shared: Strategy · Simulation · Minimalist

Fly Corp
Shared: Casual · Strategy · Transportation

911 Operator
Shared: Simulation · Strategy · Management

Game Dev Tycoon
Shared: Simulation · Management · Strategy

Planet Coaster
Shared: Simulation · Management · Strategy

Nodebuster
Shared: Casual · Strategy · Simulation

Transport Fever 2
Shared: Simulation · Strategy · Management

Transport Fever 3
Shared: Simulation · Management · Casual

Dorfromantik
Shared: Casual · Strategy · Simulation

Cities: Skylines
Shared: Simulation · Management · Strategy

shapez 2 - Factory
Shared: Management · Strategy · Simulation

Two Point Hospital
Shared: Simulation · Management · Strategy

Cities: Skylines II
Shared: Simulation · Management · Strategy

Papa's Freezeria Deluxe
Shared: Simulation · Casual · Strategy

Euro Truck Simulator 2
Shared: Simulation · Transportation · Management

Plague Inc: Evolved
Shared: Simulation · Strategy · Casual

Minami Lane
Shared: Casual · Simulation · Management

RollerCoaster Tycoon® 3: Complete Edition
Shared: Strategy · Simulation · Management

Two Point Museum
Shared: Simulation · Casual · Strategy

Startup Company
Shared: Simulation · Management · Strategy

Tavern Master
Shared: Simulation · Management · Strategy

A Game About Feeding A Black Hole
Shared: Casual · Strategy · Simulation

Two Point Campus
Shared: Simulation · Management · Strategy