| App Type | dlc |
| Release Date | Oct 15, 2020 |
| Details Last Modified | March 17, 2026 (7 months ago) |
| Developer | Paradox Development Studio |
| Publisher | Paradox Interactive - Official |
| Genres | Simulation, Strategy |
| Supported Systems | Windows, Mac, Linux |
| Price | $9.99 |
| Required Age | 0+ |
| Recommendations | 2,817 |
| Packages | 4 |
| Website | http://www.heartsofiron4.com/ |
| Support | https://paradox.zendesk.com/ |
| Support Email | support@paradoxplaza.com |
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Three new national focus trees are the heart of this expansion. The minor powers of Bulgaria, Greece and Turkey each have new alternate historical paths to follow as they resist incursions into the strategic sea lanes of the Back and Aegean seas.
Co-op
Cross-Platform Multiplayer
Downloadable Content
Family SharingMulti-player
Single-player