.HOI4 File Extension

Hearts of Iron IV Game Save File

Developer Paradox Development Studio
3.5  |  17 Votes

What is a HOI4 file?

An HOI4 file is a game save file created by Hearts of Iron IV, a World War II strategy video game. It contains saved campaign progress, which includes the placement and amount of military resources, battle history, and the time and date.

More Information

In Windows, HOI4 files are typically saved in the following location:

C:\​Users\​[Username]\​Documents\​Paradox Interactive\​Hearts of Iron IV\​save games

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Programs that open HOI4 files

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