Main Sequence demo save transfer is confirmed for the game’s paid Steam Early Access launch on 12 November 2026. Publisher Mythwright says all progress from the free demo carries across, meaning the hours you have already put into ships, research and building won’t simply be discarded at release.
That’s particularly useful if you returned for October’s expanded demo with multiplayer and new research. The publisher has promised continuity, but hasn’t published a detailed import walkthrough. Here’s what is confirmed, how to prepare sensibly and the claims you should avoid trusting until the final game is available.
Main Sequence demo save transfer is officially supported
For Main Sequence demo save transfer, Mythwright’s Steam community group explicitly states that all demo progress carries across to the full game. That includes the progress you’ve made in the demo, not just an achievement list. The announcement covers progress continuity between the demo and the paid Main Sequence release, not transfers to somebody else’s Steam account.
What hasn’t been explained is the precise treatment of every individual ship blueprint, station inventory and research item. A blanket promise to retain progress is encouraging, but it does not reveal the game’s save database structure or whether all preview elements appear unchanged. Those finer details will need checking in the release build.
How to prepare for Main Sequence demo save transfer
The sensible approach is to finish your last demo session, let the game save normally, then close it before installing the paid version. Use the same Steam account for the full game that you used for the demo. After launch, check the game’s normal save or continue options and look for the progress Mythwright has said will be retained.
These are precautions rather than an official transfer sequence. Mythwright hasn’t mentioned an import wizard or asked players to rename save files. Don’t follow folder paths copied from unrelated games, and avoid deleting demo files until you’ve confirmed the paid version loads your progress.
Does the October demo update affect your progress?
The refreshed October 2026 demo added cooperative multiplayer alongside Electromagnetic Science and equipment including the Shield Generator Mk. 1. If your previous session was on an earlier demo build, some research and equipment will look different when you return. The paid version will also continue developing through Early Access.
That doesn’t mean you need to start again. The publisher’s transfer message is about continuing progress into Early Access, not about every item staying at exactly the same power level after balance patches. For players concerned about older saves, the safest reference remains the developer’s current announcement rather than an unofficial import tutorial.
Steam Cloud, other PCs and account sharing
The Steam listing includes cloud features, but that alone doesn’t explain the demo-to-full migration mechanism. It also doesn’t establish cross-platform synchronisation with unannounced console versions. The confirmed Early Access platform is Windows PC, and Mythwright has not said that you can migrate progress between separate people’s Steam identities.
If you move between your own computers, check Steam’s sync state when the full game launches. Keep any existing local backup safe, but don’t edit or overwrite save directories based on speculation. Main Sequence demo save transfer and cloud syncing are related questions, not necessarily the same feature.
What if your save is missing on launch day?
First make sure you’re opening the paid Main Sequence game rather than a demo or earlier playtest shortcut. Check your signed-in account and allow any initial setup to finish before trying again. Don’t wipe a working demo install to force a fresh start while you’re troubleshooting.
If the expected save still doesn’t appear, contact the developer or publisher through their official support channels with your game version and what you see. Mythwright has promised the transfer, so its support guidance should be the first place to look if something goes wrong.
Does Main Sequence demo save transfer cover the closed playtest?
Main Sequence demo save transfer specifically refers to the public demo. It should not be stretched into a guarantee about every closed playtest build or a save somebody exported to a different machine months ago. If you only played a private test, wait for a separate confirmation before assuming the same rules apply.
Related Guides
Official source: Mythwright’s official Main Sequence demo-transfer announcement.
