Where Does Iron Nest Store Saves and Config?
Iron Nest puts its config in the registry and saves in a LocalLow folder whose name drops the colon from the title.
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IRON NEST, the heavy turret simulator that sold more than half a million copies after its August 6, 2026 launch, splits its PC data in an awkward way: settings go to the Windows registry, and saves go to a folder whose name is not quite the game's name.
The save folder is %USERPROFILE%\AppData\LocalLow\Iron Nest\Iron Nest_ Heavy Turret Simulator. Notice the underscore where the title has a colon. Windows folder names cannot contain colons, so the game substitutes one, and that mismatch trips up anyone searching for the folder by name.
Where IRON NEST: Heavy Turret Simulator stores this, by platform
%USERPROFILE%\AppData\LocalLow\Iron Nest\Iron Nest_ Heavy Turret Simulator\Live
Save data. AppData is hidden by default, so paste the path rather than browsing to it. The folder name uses an underscore in place of the colon in the game's title. Config is separate, in the registry.
~/.local/share/Steam/steamapps/compatdata/2950790/pfx/drive_c/users/steamuser/AppData/LocalLow/Iron Nest/Iron Nest_ Heavy Turret Simulator/Live
Steam Deck and Linux run the Windows build through Proton for app ID 2950790. The same tree applies inside the prefix, and the registry key lives in the prefix registry.
Frequently asked questions
Where is the Iron Nest config file?
There is no config file. Settings are stored in the registry under HKEY_CURRENT_USER\Software\Iron Nest\Iron Nest: Heavy Turret Simulator. Export that key before a reinstall if you want to carry options over, since a clean install starts fresh.
I cannot find the Iron Nest save folder. Why?
The folder drops the colon from the title: it is called Iron Nest_ Heavy Turret Simulator under %USERPROFILE%\AppData\LocalLow\Iron Nest. AppData is hidden by default, so paste the full path into the address bar or the Run dialog.
Does Iron Nest sync saves through Steam Cloud?
Yes, Steam Cloud covers the save folder, which makes moving between PCs simple. Keep a manual copy anyway if you have a long run going; cloud conflicts after updates happen, and being able to compare timestamps helps.
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