Games like Global Protocol: New World Order
Games like Global Protocol: New World Order include Europa Universalis IV, Stellaris, Europa Universalis V, Victoria 3, and Crusader Kings II. We matched them by the tags players give Global Protocol: New World Order on Steam (Strategy, 4X, Grand Strategy, Sandbox, and Immersive Sim): closest matches first, and among equally close ones the better-known games.

Europa Universalis IV
Shared: Strategy · Grand Strategy · 4X

Stellaris
Shared: Strategy · Grand Strategy · 4X

Europa Universalis V
Shared: Strategy · Grand Strategy · Wargame

Victoria 3
Shared: Strategy · Grand Strategy · Political Sim

Crusader Kings II
Shared: Strategy · Grand Strategy · Political Sim

Sid Meier's Civilization VII
Shared: Strategy · Grand Strategy · 4X

Manor Lords
Shared: Strategy · Grand Strategy · Sandbox

Sid Meier’s Civilization® VI
Shared: Strategy · Grand Strategy · 4X

Terra Invicta
Shared: Strategy · Grand Strategy · 4X

Victoria II
Shared: Strategy · Grand Strategy · Political Sim

Imperator: Rome
Shared: Strategy · Grand Strategy · Political Sim

Age of History II
Shared: Strategy · Grand Strategy · Political Sim

Songs of Syx
Shared: Strategy · Sandbox · Grand Strategy

Prison Architect
Shared: Sandbox · Strategy · Building

Power & Revolution 2022 Edition
Shared: Strategy · Grand Strategy · 4X

Democracy 4
Shared: Strategy · Political Sim · Grand Strategy

Rebel Inc: Escalation
Shared: Strategy · Grand Strategy · 4X

Heroes of Might and Magic: Olden Era
Shared: Strategy · Grand Strategy · 4X

Tropico 6
Shared: Strategy · Sandbox · Political Sim

Cities: Skylines
Shared: Strategy · Sandbox · Building

Power & Revolution 2021 Edition
Shared: Strategy · 4X · Sandbox

Total War: ROME REMASTERED
Shared: Strategy · Grand Strategy · 4X

Against the Storm
Shared: Strategy · Grand Strategy · Building

Crusader Kings III
Shared: Strategy · Grand Strategy · Sandbox