Keep the full-game save when Steam asks

The important S.O.N.A.R. demo save transfer advice is to keep the save from the full game if Steam presents a choice. The developer gives that direction in changelog 1.0.2.0 after addressing a risk of full-game progress being lost when the demo was launched. Do not choose the demo save simply because the conflict appeared while opening the demo.

This is guidance for a documented save conflict. The announcement does not describe a manual import feature or guarantee that every piece of demo progress carries into the full game.

What version 1.0.2.0 changed

The official changelog, published on October 30, 2026, says Steam Cloud was disabled for the S.O.N.A.R. Demo to prevent that progress-loss problem. The affected application matters: the note identifies the demo's cloud behavior, rather than announcing that all cloud saving was removed from the full game.

Check the official S.O.N.A.R. changelog feed when comparing your installed version with this fix. The documented response is the update and the instruction to retain the full-game save when prompted—not an unverified file-copy procedure.

Separate transfer questions from recovery

A request to transfer demo progress, a Steam conflict prompt, and progress that has already disappeared are three different situations. The patch provides a clear answer for the conflict prompt and explains the change intended to prevent another loss. It does not publish a recovery sequence for an already overwritten save.

Avoid treating a guessed folder move, save deletion, or cloud overwrite as an official repair. If your situation remains unresolved, record whether it occurred in the demo or full game and what Steam actually asked before seeking further help. That preserves the distinction the developer's fix depends on.

FAQ

Which save should I choose in Steam's conflict prompt?

Choose the full-game save, as directed by the 1.0.2.0 changelog.

Why was Steam Cloud disabled for the demo?

The developer says the change prevents full-game progress loss when launching the demo. The note specifically concerns the demo.

Does this confirm a manual demo-to-full-game transfer method?

No. The changelog documents cloud-conflict prevention and which save to retain. It does not describe a manual transfer or recovery method.