Immunity Protocol Save File Guide: Location, Backup & Restore

Save File Location on Windows

Immunity Protocol stores your progress locally on your PC. The default save file location is:

C:\Users\[YourUsername]\AppData\Local\ImmunityProtocol\Saved\SaveGames

Replace [YourUsername] with your Windows account name. The AppData folder is hidden by default. To access it quickly, press Win + R, type %localappdata%, and navigate to ImmunityProtocol\Saved\SaveGames.

The save file is typically named SaveSlot_0.sav or similar, depending on the slot used. Each slot corresponds to a separate character progression.

Backing Up Your Save Files

Regular backups prevent progress loss due to crashes, corruption, or system reinstalls. To back up your save:

1. Navigate to the save folder as described above.
2. Copy the entire SaveGames folder.
3. Paste it to a safe location, such as your Documents, an external drive, or cloud storage.

For extra safety, create a compressed archive (ZIP) of the folder and include the date in the filename, e.g., ImmunityProtocol_Backup_2026-06-14.zip.

Restoring a Previous Save

If you need to revert to an earlier state, follow these steps:

• Close Immunity Protocol completely.
• Go to the save folder and rename or delete the current save file (keep a backup just in case).
• Copy your backed-up save file into the same folder.
• Launch the game and verify your progress loads correctly.

Transferring Saves to Another PC

To continue your game on a different computer:

1. On the source PC, back up the SaveGames folder as described above.
2. Transfer the backup via USB drive, cloud storage, or network.
3. On the target PC, install Immunity Protocol and run it once to generate the default save folder.
4. Replace the newly created SaveGames folder with your backup.

Make sure both PCs use the same game version to avoid compatibility issues.

Troubleshooting Common Save Issues

Save File Not Loading

If the game fails to load your save, verify the file is not corrupted. Check the file size — a zero-byte file indicates corruption. Restore from a backup if necessary.

Save Disappears After Update

Game updates rarely affect save files, but if your progress seems missing, ensure you are looking at the correct save slot. The game may create a new profile if the old one is not recognized.

Permission Errors

If you cannot save or access the folder, run the game as administrator or adjust folder permissions. Right-click the ImmunityProtocol folder, go to Properties > Security, and grant full control to your user account.

Understanding Save File Structure

Each save slot contains data such as:

• Current character level and experience
• Unlocked upgrades and abilities
• Completed challenges and boss kills
• Collected currency and resources
• Game settings and keybinds

Editing save files manually is not recommended, as incorrect values can corrupt your progress. Always back up before experimenting.

Frequently Asked Questions

Can I have multiple save slots?
Yes, Immunity Protocol supports multiple save slots. Each slot is stored as a separate file in the SaveGames folder.

Does the game support cloud saves?
Yes, Steam Cloud is supported. Ensure the feature is enabled in your Steam client settings for automatic synchronization.

What happens if I delete a save file?
Deleting a save file removes that character's progress permanently. Use the in-game delete option if available, or manually remove the file after backing up.

Will mods affect my save files?
Mods may alter save data structure. Always back up your saves before installing mods, and check mod documentation for compatibility.