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Armored Core VI: Fires of Rubicon Save File Location

Last verified: 2026-10-07

Save file location (Windows (Steam)): %APPDATA%\ArmoredCore6

Quick answer: On PC (Steam), Armored Core VI: Fires of Rubicon stores its save in %APPDATA%\ArmoredCore6\<your-steam-id>\ as a single AC60000.sl2 file — that is C:\Users\<you>\AppData\Roaming\ArmoredCore6\<steam-id>\AC60000.sl2, the same encrypted .sl2 layout FromSoftware uses for Elden Ring and the Dark Souls games. It is NOT in the Steam install folder. Steam Cloud mirrors this file and syncs on launch/exit, so a corrupted or half-written .sl2 can overwrite your good cloud copy — copy the whole ArmoredCore6 folder before verifying files or moving PCs.
Windows (Steam)
%APPDATA%\ArmoredCore6
Steam Cloud
Steam userdata (managed by Steam)

Armored Core VI follows the standard FromSoftware layout: one encrypted .sl2 file in a per-Steam-ID folder under AppData\Roaming — not in the Steam install folder. Here is the exact PC path, how to open it, and how to back it up before a bad cloud sync.

Save file locations

Windows (Steam)
%APPDATA%\ArmoredCore6

Full default: C:\Users\<you>\AppData\Roaming\ArmoredCore6\<steam-id>\AC60000.sl2 . The .sl2 is one encrypted file holding all slots. Paste %APPDATA% into Explorer, then open ArmoredCore6 and your numeric Steam-ID folder.

Steam Cloud
Steam userdata (managed by Steam)

Steam Cloud keeps a mirrored copy and syncs on launch/exit. Coming back online or verifying files after a crash can pull the cloud copy down — see the cloud-conflict steps first.

Cloud saves

Armored Core VI uses Steam Cloud. It uploads the .sl2 on exit, so a corrupted or half-written save can overwrite your good cloud copy the next launch, with no visible version history. Treat a manual copy of the AppData\Roaming\ArmoredCore6 folder as your real backup, kept outside the game directory.

Cloud save conflict & platform recovery

The common loss is 'my progress rolled back' after a crash or a session on a second PC — Steam Cloud synced an older or half-written AC60000.sl2 over the newer local one.

  1. Before relaunching after a crash, copy %APPDATA%\ArmoredCore6 somewhere outside the game folder.
  2. If the cloud rolled your progress back, go offline in Steam (or disable Steam Cloud for Armored Core VI in its Properties) before launching, so the bad cloud copy cannot sync down again.
  3. Restore your copied folder into the same AppData path, launch once offline to confirm the right progress, then re-enable Steam Cloud so the good save uploads.
Back up first (Windows) — copy & run

One-line backup: paste this in Command Prompt to copy your whole Armored Core VI save folder to the Desktop before an update or PC move.

robocopy "%APPDATA%\ArmoredCore6" "%USERPROFILE%\Desktop\AC6-save-backup" /E

Run it with the game closed. To restore, swap the source and destination paths.

How to open the save folder

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Save problems & fixes

FAQ

Where is the Armored Core VI save file on PC?

In C:\Users\<you>\AppData\Roaming\ArmoredCore6\<steam-id>\AC60000.sl2 — not in the Steam install folder. Paste %APPDATA%\ArmoredCore6 into Explorer to find it.

Does Armored Core VI use Steam Cloud?

Yes. The .sl2 syncs through Steam Cloud on launch and exit, so a bad local save can overwrite the good cloud copy — keep a manual copy of the ArmoredCore6 folder as a real backup.

Can I copy my Armored Core VI save to another account or PC?

To a new PC yes: copy the ArmoredCore6 folder to the same AppData path before first launch. To another Steam account, no — the AC60000.sl2 is bound to the original Steam ID and will not load.

Why did my Armored Core VI progress roll back?

Usually a Steam Cloud conflict after a crash or a session on a second PC: an older or half-written .sl2 won the sync. Restore your folder backup, launch offline to confirm, then re-enable cloud.

Other games

Need another game or a quick backup? Use the Save Location Finder — pick any game to get its exact save path plus a ready-to-run backup command.