Where Are X4: Foundations Saves Located?
X4 Foundations save folder on PC under Documents Egosoft with per-ID subfolders.
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X4 files empire saves under Documents Egosoft, inside numbered subfolders that separate Steam accounts on shared machines. Quicksaves, autosaves and manuals share one folder per ID.
Late-game saves get enormous. Archive finished campaigns to cold storage instead of hoarding them in the live folder.
Where X4: Foundations stores this, by platform
%USERPROFILE%\Documents\Egosoft\X4
Numbered ID subfolders inside, each with its own save directory. Copy the whole X4 tree with the game closed. Modded saves depend on matching extensions, so note your mod list before migrating.
Frequently asked questions
Why are there numbered folders inside the X4 save directory?
They separate per-account saves on shared PCs. Back up the ID folder matching your Steam account, or just take the whole X4 tree.
Do X4 mods break saves?
Removing extensions mid-campaign usually corrupts the save. Keep the same mod set when moving saves between machines.
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