: Features massive new focus trees for Italy , Ethiopia , and Switzerland , along with a detailed Aircraft Designer .
In a complete collection up to this version, the following major expansions would be included: : Features massive new focus trees for Italy
Hearts of Iron IV (HOI4) version , also known as the Avalanche update, was released alongside the By Blood Alone expansion. This version represents a significant milestone in the game's evolution, introducing major overhauls to core mechanics that affect all players, regardless of whether they own the specific DLC. Version 1.12.4 Key Features & Overhauls Version 1
The 1.12 update brought sweeping changes to the fundamental systems of the game: and Baltic states
: Focuses on the Eastern Front with a Tank Designer , updated focus trees for the Soviet Union , Poland , and Baltic states , and an overhauled supply system.
: A completely overhauled system based on a blind-bid premise, allowing for more detailed demands such as taking ships, demanding war reparations, and dismantling military industries.