macOSWindowsLinuxSteamHearts of Iron IV: Battle for the Bosporus

Hearts of Iron IVThis DLC Requires:Hearts of Iron IV
Region restrictions
Activates within United States
Will NOT activate in the following countries:
Afghanistan, Argentina, Armenia, Azerbaijan, Bahamas, Belarus, Belize, Bolivia, Brazil, Central African Republic, Chile, China, Colombia, Congo, The Democratic Republic of the, Costa Rica, Cuba, Ecuador, El Salvador, Georgia, Guatemala, Guyana, Honduras, Iran, Islamic Republic of, Iraq, Kazakhstan, Korea, Democratic People's Republic of, Kosovo, Kyrgyzstan, Lebanon, Libyan Arab Jamahiriya, Moldova, Republic of, Myanmar, Nicaragua, Panama, Paraguay, Peru, Russian Federation, Somalia, South Sudan, Sudan, Suriname, Syrian Arab Republic, Tajikistan, Turkey, Turkmenistan, Ukraine, Uruguay, Uzbekistan, Venezuela, Yemen, Zimbabwe.
  • Hearts of Iron IV: Battle for the Bosporus Screenshot 1
  • Hearts of Iron IV: Battle for the Bosporus Screenshot 2
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  • Hearts of Iron IV: Battle for the Bosporus Screenshot 9

Description

This expansion for Hearts of Iron IV adds dedicated national focus trees to the minor powers around the Black Sea and the Aegean. Bulgaria, Greece and Turkey can each chart unique historical and alternate history paths as they resist efforts by the major powers to dominate the strategic sealanes of the Bosporus and Dardanelles.

Features:

  • National Focus Tree for Bulgaria: Balance the factions in a divided land or reclaim territory lost in 1919. Follow the historical alliance with Germany or resist the German pressures on Tsar Boris, standing up for a free Bulgaria.
  • National Focus Tree for Greece: Riven by political division, Greek neutrality is maintained by the controversial Metaxas. Build a strong relationship with the Allies under the guidance of King George II, follow arch-conservatives into fascism or restore the glories of Greek Empire in the east.
  • National Focus Tree for Turkey: Robbed of its empire in the last war, what future is there for Turkey in a new one? Continue or halt the reforms of Kemalism, stand as the protector of the Balkans in a new regional faction, restore the Sultan to the throne or found a new Islamic state.
  • New Music Tracks
  • New 3D Unit Models for Balkan and Turkish Armies
  • Unique voiceovers for Bulgaria, Greece and Turkey
Paradox Interactive, HEARTS OF IRON® Copyright© [2016] Paradox Interactive AB All rights reserved. www.paradoxplaza.com

Requirements

Windows Requirements:
MINIMUM:
OS: Windows® 7 64 Bit | Windows® 8.1 64 Bit | Windows® 10 Home 64 Bit
Processor: Intel® Core™ i5 750 | AMD® FX 4300
Memory: 4 GB RAM
Graphics: Nvidia® GeForce™ GTX 470 (1.28GB) | AMD® HD 5850 (1GB) | Intel Iris Xe G7 (Tiger Lake) | AMD® Radeon™ RX Vega 11 | Steam Deck
DirectX: Version 9.0c
Storage: 2 GB available space
Sound Card: Direct X- compatible soundcard.
Additional Notes: Mouse and keyboard are required. / Latest available WHQL drivers from both manufacturers/ Internet Connection or LAN for multiplayer, Up to 32 other players in multiplayer mode.
RECOMMENDED:
OS: Windows® 10 Home 64 bit
Processor: Intel® Core™ i5 2500K | AMD® Ryzen 3 2200G
Memory: 6 GB RAM
Graphics: Nvidia® GeForce™ GTX 570 (1.28GB) | AMD® Radeon™ HD 7970 (3GB) | Intel Iris Xe G7 (Tiger Lake)
DirectX: Version 9.0c
Storage: 2 GB available space
Sound Card: Direct X- compatible soundcard.
Additional Notes: Mouse and keyboard are required. / Latest available WHQL drivers from both manufacturers. / Internet Connection or LAN for multiplayer, Up to 32 other players in multiplayer mode.
  • Requires Hearts of Iron IV to play.
  • Requires Steam and a Steam Account to play Windows version.
Linux Requirements:
MINIMUM:
OS: Ubuntu 18.04
Processor: Intel Core 2 Quad Q9400 @ 2.66 GHz / AMD Athlon II X4 650 @ 3.20 GHz
Memory: 4 GB RAM
Graphics: ATI Radeon HD 5850 or NVIDIA GeForce GTX470 with 1GB VRAM / Latest available proprietary drivers from both manufacturers
Storage: 2 GB available space
Additional Notes: Controller support: 3-button mouse, keyboard, and speakers are required. / Internet Connection or LAN for multiplayer, Up to 32 other players in multiplayer mode.
RECOMMENDED:
OS: Ubuntu 18.04
Processor: Intel Core i5 750 @ 2.66 GHz / AMD Phenom II X4 955 @ 3.20 GHz
Memory: 4 GB RAM
Graphics: ATI Radeon HD 6950 or NVIDIA GeForce GTX570 with 2GB VRAM / Latest available proprietary drivers from both manufacturers
Storage: 2 GB available space
Additional Notes: Controller support: 3-button mouse, keyboard, and speakers are required. / Internet Connection or LAN for multiplayer, Up to 32 other players in multiplayer mode.
  • Requires Hearts of Iron IV to play.
  • Requires Steam and a Steam Account to play Linux version.

Reviews & Comments

3.8
*****
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  1. PFP

    A mixed bag*****

    Decent DLC if you have a specific interest in the Balkan region, mostly focused on focus trees for Turkey, Greece, and Bulgaria. Otherwise, not a must have.

    by Saisai, Switzerland - Mar 2nd 2026
  2. PFP

    Bulgaria/Greek Trees are made to be Fun!*****

    HoI4 DLC can be hit and miss in some regards (this DLC included). While the Turkish tree is overly long and time locked in some regards, the Bulgarian Focus Tree and the Greek Focus Tree to some extent are definitely worth picking this DLC on when it's available.

    by Varin F., United States - Mar 12th 2025
  3. PFP

    Great DLC*****

    It gives a good emphasis on Greece, Bulgaria and Turkey. It is fun to restore the Byzantine empire.

    by Maxime D.1, France - Feb 17th 2024
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