Buy Hearts of Iron IV CD key compare prices

Hearts of Iron IV is a grand strategy war game developed by Paradox Development Studio and published by Paradox Interactive. It was released on June 6, 2016 for Windows, macOS, and Linux, and it remains one of the most played strategy games on Steam.

You pick any nation active in the late 1930s and guide it through World War II. The map covers the whole globe, and each country can take its historical path or a very different alternate history route through national focus trees.

Much of the game happens away from the battlefield. You build factories, assign production lines, research new technology, and manage supply. On the front, you design your own divisions, draw battle plans for your armies, and coordinate land, air, and naval forces.

Diplomacy and politics shape every campaign. You can join or form factions, support coups, and shift your country toward democracy, fascism, communism, or non-alignment. Single-player campaigns can last many hours, and multiplayer supports up to 32 players plus co-op control of a single nation.

Campaigns start in either 1936 or 1939, so you can prepare your nation before war breaks out or jump straight into the conflict. Paradox has supported the game for years with free updates alongside paid expansions.

The game suits strategy fans who enjoy planning, logistics, and history. A large Steam Workshop modding scene adds total conversions and new scenarios.

Which version should you buy?

• Activation: Keys activate on Steam and run on Windows, macOS, and Linux.

• Editions: The standard edition contains the full base game; expansions such as Man the Guns are sold separately as DLC.

• Expansions: DLC adds new focus trees and systems but is optional; the base game is fully playable on its own.

Before you buy, confirm each offer is a Steam key for your region, then read our guide on how to activate your CD key. You can also see an expansion like Hearts of Iron IV: Man the Guns or visit the official Hearts of Iron IV website.