The game Fallout Shelter from Bethesda allows you to build and develop your own underground bunker, managing the lives of its inhabitants. Gamers often start their journey on powerful desktop computers, enjoying high performance and a large screen. However, the need to continue playing on the road or while traveling makes you think about transferring your progress to mobile devices. Unfortunately, there is no official support for cross-platform saving, which creates certain difficulties for users.
The process of migrating data between different operating systems is not a trivial task that requires intervention in the file structure. You'll have to deal with system folders, permissions, and specific file formats. Despite the apparent complexity, the procedure is quite doable if a certain sequence of actions is followed. This article will analyze in detail all the stages, from finding the source file to integrating it into the mobile version of the game.
Before starting any manipulations, it is critical to create backup copies of all source data. Any mistake when copying or replacing files can lead to a complete loss of the progress that you have accumulated for hours. We'll look at several methods, including using cloud storage and connecting directly via a USB cable. The choice of a specific method depends on your technical training and the availability of root access on your mobile device.
Search and prepare a save file on your computer
The first step is to localize the save file on your personal computer. Unlike many modern games, Fallout Shelter stores data in a specific directory, the path to which depends on the installation method. If you purchased the game in the store Steam, the files will be located in the user profile folder. The standard path looks like C:\Users\[Username]\Documents\My Games\FalloutShelter. This is where the file SaveGame.sav or vaults.bincontains all the information about your shelter.
For owners of the version from Microsoft Store the situation is somewhat more complicated due to the application sandbox. Files may be hidden in the system folder AppData, access to which is sometimes restricted. In this case, it is recommended to enable the display of hidden files in Explorer. It is also worth checking the synchronization settings in the game itself if you have previously used the cloud Xbox Live or Steam Cloud, although for direct transfer to Android we need a local file.
⚠️ Attention: Do not delete the original save file from your computer immediately after copying. Leave it as a backup copy on external media or in the cloud so that you can roll back changes in case of failure.
Once the file is found, you need to ensure its integrity. The file size usually varies depending on the number of floors and inhabitants in your bunker. A size that is too small may indicate data corruption or an empty save. It is recommended to copy the file to your desktop and rename it adding the date, for example vault_backup_2026.bin. This will make it easier to identify the correct version in the future.
If you have several characters, there may be files with digital indexes in the save folder. Copy all files with the extension .sav or .bin so as not to lose alternative passages.
Analysis of the folder structure on an Android device
Mobile operating system Android has a strict security policy that limits application access to the file system. Starting from version Android 11, direct access to the folder Android/data through standard file managers has become difficult. The game Fallout Shelter stores its data along the path Android/data/com.bethsoft.falloutshelter/files. Inside this directory you will find the file that needs to be replaced.
To perform the operation, you will need an advanced file manager that can bypass system restrictions. Applications like Total Commander, Solid Explorer or FX File Explorer provide the necessary functionality. The first time you access a protected folder, the system will ask for access permission. You need to confirm the action in the system dialog by clicking the "Use this folder" button. Without this step, you will not be able to write a new save file.
If your device has root access, the process is greatly simplified. You get full access to all system partitions and can directly edit the contents of folders without additional permissions. However, gaining root privileges will void the device warranty and may cause system instability. For most users, it is enough to use standard tools with the right file manager.
Instructions for transferring via USB connection
The most reliable way to transfer data is to directly connect the smartphone to the computer via a USB cable. This method eliminates the risk of data loss when uploading to the cloud and allows you to control the copying process. Connect your device to your PC and select file transfer mode MTP in Android notifications. Make sure your computer recognizes your phone as a removable storage device.
Copy the previously prepared save file from a folder on your computer. Go to the phone memory and find the directory Android/data/com.bethsoft.falloutshelter/files. Before inserting a new file, it is strongly recommended that you rename the existing save file by adding the suffix .oldto its name. This action will create a rollback point if the game refuses to launch with the new file.
☑️ Checklist for transferring via USB
After copying the file, disconnect the device from the computer in a secure way. Launch the game Fallout Shelter on your smartphone. If everything went well, you should see your shelter in the same state as it was on the PC. In some cases, you may need to restart the application or even the device itself for the changes to take effect. The game may ask for permission to access the storage - be sure to confirm it.
⚠️ Attention: Make sure that the versions of the game on your PC and Android are the same or the version on your phone is newer. An attempt to load a save from a newer version of the game into an older version of the application will result in a data reading error.
Using cloud services as an intermediate link
If connecting via cable is not possible, you can use cloud storage, such as Google Drive, Dropbox or Yandex.Disk. This method is convenient in that it does not require a computer to be available at the time of transfer if the file is already uploaded to the network. Upload your save file from your PC to the cloud. Make sure that the download is complete and the file is not damaged.
Install the application of the selected cloud service on your smartphone. Find the downloaded file and download it to your device's local memory. The problem may arise with where exactly the file is saved. Often downloads end up in the folder Download. You will need to manually move the file from the downloads folder to the game directory Android/data/com.bethsoft.falloutshelter/filesusing a file manager as described in the previous sections.
This method has one significant drawback - additional steps to move the file inside the phone's memory. Direct synchronization of the game folder with the cloud is not possible due to Android security restrictions. Therefore, the cloud acts only as a transport, and not as a means of directly synchronizing progress. However, this is a great way to keep archives of your saves safe.
Cloud services are convenient for archiving, but require manually moving the file to the game system folder due to Android security restrictions.
Compatibility table of versions and file formats
When transferring saves, the compatibility of game client versions plays an important role. Developers periodically update the structure of save files, adding new features or changing the balance. Using an incompatible file may cause the game to crash or data to disappear. Below is a table to help you navigate the main formats and versions.
| Platform | File type | Location | Features |
|---|---|---|---|
| PC (Steam) | SaveGame.sav |
Documents\My Games |
Often required renaming |
| PC (Win Store) | vaults.bin |
AppData\Local\Packages |
Access is limited to the system |
| Android | SaveGame.sav |
Android/data/... |
Requires access rights to the folder |
| iOS | vaults.bin |
Inside the application container | Requires iTunes or iMazing |
Please note that in some cases the file on the PC may be called differently than on the phone. When transferring from PC to Android, you often need to rename the file vaults.bin to SaveGame.sav or vice versa, depending on which file is already present in the destination folder. The system simply replaces the existing file with a new one, so the target file name must match what the game expects.
If after replacing the file the game starts but shows an empty shelter, it means the file was not recognized. Try returning the original file name or checking its size. It is also possible that you copied the file from another Steam profile folder if you used multiple accounts on your computer. Carefully check the modification date of the file to ensure that it is a current save.
What to do if the file names do not match?
If the file is called vaults.bin on your PC and SaveGame.sav on your phone, rename the file from the PC to SaveGame.sav before copying. The game reads the file by extension and internal structure, but is sometimes sensitive to the name.
Solving common problems and errors
Even if you strictly follow the instructions, unforeseen situations may arise. One of the common problems is that the game does not see the new save file and starts from scratch. This often happens due to data caching. Try clearing the application cache Fallout Shelter in Android settings before launching. Don't confuse clearing cache with clearing data, otherwise you will delete the current progress on your phone.
Another common mistake is related to access rights. If the file manager cannot write a file to the folder Android/data, try using the system's built-in file manager, granting it special permissions through the storage settings menu. As a last resort, you can temporarily move the file to the root directory or folder DCIM, and then within the game process (if there is such an import function) or through the terminal move it to the desired location.
It is also worth mentioning the problem of desynchronization when using Steam Cloud. If you transfer the file manually, but Steam tries to sync the next time you launch it on PC, it may overwrite your new file with the old version from the cloud. To avoid this, temporarily disable cloud syncing in the game properties in your Steam library before launching after the transfer.
⚠️ Attention: File manager interfaces and Android system settings may differ depending on the device manufacturer (Samsung, Xiaomi, Pixel). If you cannot find the menu item you need, use the search in your phone settings.
Before transferring, make sure that there is enough free space on your phone. Although the save file is small, the game requires space for temporary operations and unpacking data when starting.
Frequently asked questions (FAQ)
Is it possible to transfer a save without root access?
Yes, it is possible. Starting with Android 11, the system allows you to give file managers special access to a folder Android/data. You need to use a modern file manager (for example, Total Commander with a plugin or Files from Google with certain settings) and confirm the permission in the system dialog when trying to enter this folder.
Why does the game crash after inserting a new file?
The most likely reason is incompatibility between game versions. A save file from a newer version of the game may not be readable by the older version of the client. Update the application on Google Play to the latest version. It is also possible that the file is damaged or you copied the wrong file (for example, a temporary file instead of the main save).
Will my resources and villagers disappear during the transfer?
If you follow the instructions correctly, all data, including villagers, resources, weapons and clothing, should be preserved exactly as they were on the PC. If something is missing, it means the wrong save file was replaced or there was a writing error. Restore the backup we recommended making at the beginning.
Is it possible to transfer a save from Android to PC?
Yes, the process is reversible. You need to find the save file in the folder on your phone, copy it to your computer and place it in the folder, replacing the existing file. The logic of the actions is completely similar, only the direction of transmission changes. Android/data/com.bethsoft.falloutshelter/files on your phone, copy it to your computer and place it in a folder Documents\My Games\FalloutShelter, replacing the existing file. The logic of action is completely similar, only the direction of transmission changes.
Is it safe to use third-party apps for backup?
Using proven backup apps (for example, Titanium Backup for root devices or Swift Backup) is safe and often more reliable than manual backups. However, be wary of apps that require suspicious permissions. Always check the reputation of the utility before installation.