What format is Fallout 4 save?

What Format is Fallout 4 Save?

Fallout 4, a popular action role-playing game developed by Bethesda Game Studios, uses a specific file format to save game data. In this article, we will delve into the details of the file format used by Fallout 4 to store game saves.

Direct Answer to the Question

The file format used by Fallout 4 to save game data is a proprietary format called FOS file (Fallout Save), which is a binary file that contains all the game data, including character information, quest status, inventory, and more. This file format is specific to the Fallout 4 game and is not compatible with other game file formats.

How Fallout 4 Saves Work

Fallout 4 saves are stored in a location specific to the game, typically in the following directory:

• C:UsersusernameDocumentsMy GamesFallout4Saves

Each save file is a unique FOS file that contains all the relevant game data. When you create a new save, the game generates a new FOS file and stores it in this directory. When you load a save, the game loads the corresponding FOS file and restores your game state.

Types of Saves

Fallout 4 allows players to create different types of saves, including:

• Manual Saves: These are saves created explicitly by the player, usually by entering the game’s pause menu and selecting the "Save" option.
• Quick Saves: These are automatic saves created by the game at specific points, such as when you enter a new location or finish a quest.
• Auto Saves: These are automatic saves created by the game at regular intervals, usually every 15 minutes, to prevent data loss in case of a game crash or shutdown.

File Structure

The FOS file used by Fallout 4 is a complex data structure that contains various sections and tables. The file is divided into several sections, each containing specific data, such as:

• Header: Contains metadata about the save file, including the game version and checksum.
• Character Data: Contains character information, including stats, skills, and equipment.
• Quest Data: Contains information about quests, including current quest states and objectives.
• Inventory Data: Contains information about the player’s inventory, including items, weapons, and armor.
• Game Data: Contains general game data, such as the current game state and settings.

File Size and Compression

The FOS file used by Fallout 4 is typically around 1-10 MB in size, depending on the amount of game data stored. The file is compressed to reduce its size and improve loading times.

Conclusion

In conclusion, Fallout 4 uses a proprietary file format called FOS (Fallout Save) to save game data. The FOS file is stored in a specific directory and contains various sections and tables that store game data, including character information, quest status, inventory, and more. Understanding the file format and structure can be helpful for players who want to learn more about the game’s mechanics and modify their saves using third-party tools.

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