DLC / add-on · Paradox Interactive
Theater Pack - Hearts of Iron IV: Thunder at our Gates
- Co-op
Step into the heart of command in Thunder at Our Gates, a Theater Pack for Hearts of Iron IV; featuring new content for Australia, Siam, Indonesia and more.
Before you buy
- Redeem on
- Steam clientPC: Windows, macOS, Linux. Needs a free Steam account.
- Activates in
- Europe and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom.Activates on accounts registered in the EU, EEA, Switzerland and the United Kingdom.Will not activate on accounts registered in North America, Asia, Latin America or Oceania.
- You get
- A digital activation keyAn add-on. You need the base game on the same account.
- Delivery
- To your account and by emailDelivered to your account and by email once it is ready. Some orders get a short manual check first.
Trailers and screenshots
About this add-on
Step into the heart of command in Thunder at Our Gates, a Theater Pack for Hearts of Iron IV. Expand on the art of organizing a campaign with new features such as military headquarters and navy captains, as well as unique new content for nations caught between rival empires; Australia, Siam and Indonesia.
Hearts of Iron IV: Thunder at Our Gates includes:
Australia Focus Tree: Support your Allies across the world and hold fast as the last bastion against Japan in the Pacific, or make use of your unstable political climate to change your course entirely.
Siam Focus Tree: Turn rival nations into pawns, exploit the great powers and carve out your own empire in Southeast Asia.
Indonesia Focus Tree: Steer the course of Indonesia’s future; remain under Dutch rule, or seize the moment to fight for independence alone, or under a new patron.
Military HQs: Deploy your generals where they matter. Wield local command and support your troops through synergies with updated command abilities, proximity, and new division design features.
Ship Captains: Named captains lead your ships, where they earn skills and can be promoted to admirals to command your fleets
Description, images and details are taken from this product's Steam page.
Details
- Developer
- Paradox Development Studio
- Publisher
- Paradox Interactive
- Base game
- Hearts of Iron IV
- Released
- 11 Jun, 2026
- Genres
- Strategy, Simulation
- Runs on
- Windows, macOS, Linux
- Activates on
- Steam client, Europe and UK
- Interface
- English, French, German, Polish, Portuguese - Brazil, Russian, Spanish - Spain, Japanese, Simplified Chinese, Korean
- Age rating
- PEGI 7
- Single-player
- Multi-player
- Co-op
- Cross-Platform Multiplayer
- Downloadable Content
- Steam Achievements
- Steam Trading Cards
- Steam Workshop
- Steam Cloud
- Remote Play on Tablet
- Family Sharing
Rated PEGI 7. Suitable for ages 7 and over.Content: Violence.
Activating it on Steam client
- Open the Steam client and sign in.
- Choose Games in the top menu, then Activate a Product on Steam.
- Paste the key and confirm. It appears in your library.
- You need the base game on the same account.
The key is listed for the Europe and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom. region. Read how regions work before you buy.