Games like Port Royale 4 - Buccaneers
Games like Port Royale 4 - Buccaneers include Port Royale 4, Port Royale 3, Europa Universalis V, BidKing, and Railway Empire. We matched them by the tags players give Port Royale 4 - Buccaneers on Steam (Strategy, Simulation, Pirates, Trading, and Downloadable Content): closest matches first, and among equally close ones the better-known games.

Port Royale 4
Shared: Strategy · Simulation · Trading

Port Royale 3
Shared: Strategy · Simulation · Trading

Europa Universalis V
Shared: Strategy · Simulation · Trading

BidKing
Shared: Strategy · Simulation · Trading

Railway Empire
Shared: Strategy · Simulation · Trading

Patrician III
Shared: Strategy · Simulation · Trading

Victoria 3
Shared: Strategy · Simulation · Trading

Cities: Skylines
Shared: Simulation · Strategy

Plague Inc: Evolved
Shared: Strategy · Simulation

Manor Lords
Shared: Strategy · Simulation

Crusader Kings III
Shared: Strategy · Simulation

The Guild II Renaissance
Shared: Strategy · Simulation · Trading

Totally Accurate Battle Simulator
Shared: Simulation · Strategy

Europa Universalis IV
Shared: Strategy · Simulation

Against the Storm
Shared: Strategy · Simulation

Corsair Cove
Shared: Strategy · Simulation · Pirates

Anno 2070™
Shared: Strategy · Simulation · Trading

Mad Games Tycoon 2
Shared: Simulation · Strategy · Trading

Hearts of Iron IV
Shared: Strategy · Simulation

Transport Fever 2
Shared: Strategy · Simulation

Grand Ages: Medieval
Shared: Strategy · Simulation · Trading

Sailing Era
Shared: Strategy · Simulation · Trading

Mini Motorways
Shared: Strategy · Simulation

X4: Foundations
Shared: Simulation · Strategy · Trading