.HOI4 File Extension

Verified information
Information about the file HOI4
  • Hearts Of Iron IV Saved Game Format
  • Game Files

What is the HOI4 file?

The HOI4 file extension can be associated with several types of files. Most often, however, a file with such an extension is associated with the Hearts Of Iron IV Saved Game Format format. HOI4 files are supported by Windows operating systems. The HOI4 file is one of the Game Files files, just like 1509 of the other files found in our file information database.

A program that can open the HOI4 file is e.g. Hearts of Iron IV. This software was released by Paradox Interactive.

Programs, that can open .HOI4 files

Paradox Interactive
Hearts of Iron IV

How to open a .HOI4 file?

If you have problems opening the file HOI4, then in most cases the problem is only the lack of the proper application installed. Select one of the programs from the list and install it on your device. The operating system should automatically associate the HOI4 file format with the installed program. If not, right click on your HOI4 file and select from the menu "Open with" . Then select the installed program and confirm the operation. Now all HOI4 files should automatically open with the selected program.

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