Development Studio · Paradox Development Studio*
Hearts of Iron III
At a glance
Genres
- historical video game
- real-time strategy
- computer wargame
- grand strategy wargame
- strategy video game*
Play modes
- single-player video game
- multiplayer video game
Series
- Hearts of Iron
Game facts
Developers
- Development Studio
- Paradox Development Studio*
Publishers
- Paradox Interactive
Engines
- Development Studio
Platforms
Players by platform
- Microsoft Windows*
- Maximum players (mode unspecified)
- 1*
Content classifications
- ESRB · Microsoft Windows*
- Classification
- E10+ - Everyone 10+*
Compatibility and community reports
- Steam Deck · 2026-06-27*
- Compatibility category
- Unsupported*
- Linux · Community reports · 2026-06-27*
- Community Linux compatibility tier
- Silver*
- Reports
- 44*
- Community confidence
- strong*
System requirements
- macOS · Unspecified tier*
- Operating system
- OS X 10.5.8 or higher*
- Processor alternatives
- Any Intel CPU*
- Memory
- 128 MB VRAM, 1GB RAM Hard Disk Space: 1.3 GB hard disk space Video Card: GeForce 7300, Radeon HD 2400 (GMA cards not supported) Internet: Broadband connection for Internet play Registration: Internet connection for registration*
- Windows · Unspecified tier*
- Processor alternatives
- 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 videocard Sound: Direct X-compatible sound card DirectX®: Direct X 9.0*
- Conditions
- Operating System: Microsoft® Windows® 2000/XP/Vista*
- Windows · Minimum*
- Processor alternatives
- Intel Pentium IV 2.4 GHz or AMD 3500+*
- Memory
- 2 GB*
Steam version platforms
- Windows*
- Supported
- Yes*
- macOS*
- Supported
- Yes*
- Linux*
- Supported
- No*
Interface languages
- English*
- French*
- German*
- Spanish - Spain*
Game features
- Single-player*
- Multi-player*
- Co-op*
- Steam Trading Cards*
- Family Sharing*
Store genres
- Strategy*
Screenshots
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* Provisional data