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Home Strategy Hearts of Iron III + DLC Collection v1.4-3

Hearts of Iron III + DLC Collection

Updated v1.4-3
Version updated to v1.4-3

Updated May 31, 2026 4:59 am (3 weeks ago)

Hearts of Iron III is a grand strategy game that puts you in command of a nation during World War II. Manage military forces, industrial production, diplomatic relations, and technological research as you shape the course of history through deep strategic decision-making.

Strategy
About this game

Hearts of Iron III + DLC Collection overview

Hearts of Iron 3 lets you play the most engaging conflict in world history, World War 2, on all fronts as any country and through multiple different scenarios. Guide your nation to glory between 1936 and 1948 and wage war, conduct diplomacy and build your industry in the most detailed World War 2 game ever made.

  • Play as any nation from 1936 to 1948, more than 150 countries to choose from.
  • Control the oceans with aircraft carriers, submarines and battleships and use your air force to defend your skies, support your naval and ground forces, and to bomb your enemies
  • Thousands of historically accurate real-world military commanders and politicians.
  • Realistic military command AI with unprecedented levels of interaction
  • In-depth diplomatic and political system.
  • Historical accuracy combined with an unparalleled level of freedom of choice
  • More than 10,000 land provinces makes the game five times more detailed than HoI2 and the most detailed depiction of World War 2 ever made.
  • Customize your divisions in detail with more than 20 types of brigades
  • New economic system makes it possible to buy weapons from abroad.
  • Mobilization and reserves gives the option of surprise attacks, Blitzkrieg made real.
  • Government-in-exile makes it possible to continue to struggle from abroad with underground movements and uprisings against the oppressing power.
  • Strategic warfare system makes it more important to defend the skies and oceans against foreign attacks; leaving cities open to enemy bombing will now be devastating.
  • A completely new intelligence system, with several types of intelligence sources, makes it possible to get information about enemy reserves and troop movements.
  • Assign troops to “theatres” on the map to fight two-front wars more successfully.
  • The new AI system and more detailed map will allow for more strategic decisions.
  • Flexible technology system with hundreds of categories, where major powers get their own unique attributes.
System Requirements

Will this game run on your PC?

Minimum

  • Windows XP / Vista / 7 / 8 / 10
  • Processor: Intel Pentium IV 2.4 GHz or AMD 3500+
  • Memory: 2 GB of RAM
  • Hard Disk Space: 2 GB
  • Video Card: NVIDIA GeForce 8800 or ATI Radeon X1900
  • Direct X-compatible sound card
  • Direct X 9.0
  • Please be advised that Windows 10 operating system will receive frequent hardware driver and software updates following its release; this may affect game compatibility.
Instructions

Download, Install, and Play

  1. Click the download button to get the link. You’ll be redirected to our link generator.
  2. Once you’re there, you can either copy the link or open it directly.
  3. Download Hearts of Iron III + DLC Collection v1.4-3 [latest]. Wait until it is 100% complete, then locate the files.
  4. Install the game:
    • Run or double-click setup_********.exe.
    • If a DLC folder is included, run any .exe files inside it as well.
  5. After the installation is complete, launch the game and start playing.
  6. Enjoyed the game? Consider purchasing it from the official store to support the developers.

Need help?
Check our FAQs for common questions and fixes. If you need additional assistance, you can also visit the official GOG Support Center.

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