Moonlighter 2: The Endless Vault Save Transfer and Progress Guide

Short answer: no official save rule was ever published

The version 1.0 transition has already happened. Digital Sun and 11 bit studios published a long launch-day announcement describing the story conclusion, the postgame, new weapons, a new perk path, a new shop level and a Hardcore mode — and not one line about save files, migration, or a wipe.

That silence is the whole answer to this question. There is no official rule to quote, in either direction.

What Steam Cloud confirms

The Steam listing includes Steam Cloud. That confirms the feature is offered, but it does not publish a save-slot count, a conflict-resolution rule, or a guarantee that any particular update preserves every field.

• Steam Cloud is listed.
• Cross-platform save support is not confirmed by that label.
• A migration rule between versions is not confirmed by that label.
• The listing does not define how save conflicts or progress variants are handled.

Why this still matters after 1.0

Two groups of players still need this page. The first is anyone who has not launched the game since before September 2, 2026 and wants to know what happens to an old file on first load. The second is anyone playing now, because 1.0 is a starting point for patches rather than the end of updates, and the same absence of a published policy applies to those.

A third case is specific to the launch build: Hardcore Mode carries its own progress penalty by design. That is a game rule, not a save-transfer rule, and the two should not be confused when reading community reports.

Low-risk preparation for any update

The safest preparation is reversible and does not depend on an invented file path or migration command. Keep an offline backup of important save data before a major update, and keep that backup separate from any copy created afterwards.

• Record the current game version and the progress you want to check after the update.
• Copy your save data somewhere outside the game folder before applying a large patch.
• Do not overwrite the pre-update backup until you have confirmed the post-update result yourself.
• Treat Steam Cloud as a listed feature, not as proof of cross-version preservation.
• Keep any official version note that does discuss saves, since that would be the first real rule published.

How to read the Steam Cloud status safely

For this question, the useful confirmed fact is simply that Steam Cloud appears in the Steam feature listing. Use that to confirm the feature remains advertised, but do not turn it into a claim about cross-platform saves, a guaranteed restore, or a wipe decision. Those are separate questions that need explicit wording from the developer or a version note.

What to watch for next

A real update on this would come from Digital Sun or 11 bit studios in a developer announcement, patch note, or version note. Look for direct wording about save migration, wipe behavior, compatibility with existing progress, and any required player action. Until those terms are published, this page stays a preparation guide rather than a promise.

Related Moonlighter 2 guides