Moon Sweepers Guide

Save File Location, Backups and Crash Fixes

Updated · Basics

Quick answer

Since patch 1.0.4 every save slot keeps up to 5 automatic backups (one a minute into each session, then every 30 minutes) in C:\Users\<you>\AppData\LocalLow\DragDropGames\MoonSweepers\Backups — outside Steam Cloud. Damaged saves are repaired from these automatically when the world loads. AMD crashes: the game now defaults to DirectX 11.

How saving works now (1.0.4)

Manual safety copy: before trying mods or save editors, copy the whole MoonSweepers folder somewhere else.

Common problems

Problem Fix
Crash on AMD GPU Fixed in 1.0.4 by defaulting to DirectX 11. Only add -force-d3d12 (Steam → Properties → Launch options) if you want DX12
Machines stuck on “Could not pack a capsule” Bug fixed in 1.0.4 — update. Then check power (solar is 0 at night) and that the output belt isn’t full
Friend can’t join Everyone must be on the same version — restart Steam to get the update
Dust reappearing for crewmates Ground sync was reworked in 1.0.4
Fell through the Moon (after teleporting) Fixed in 1.0.4
Capsules fell under foundations Fixed in 1.0.4
Low FPS on big bases 1.0.3 added up to ~20% more FPS; ground behind the horizon is no longer drawn
Won’t start on Steam Deck / Linux 1.0.4 fixed older Proton versions
Game pauses when you alt-tab Players report it pauses when the window loses focus ⚠️

Still stuck? The developers ask for bug reports on their official Discord (linked on the Steam page). Full change list: patch notes.

FAQ

Where is the Moon Sweepers save file?

The developers give the backup folder: %USERPROFILE%\AppData\LocalLow\DragDropGames\MoonSweepers\Backups. The main save location isn't documented — it's most likely the parent MoonSweepers folder (unconfirmed). Paste %USERPROFILE%\AppData\LocalLow\DragDropGames\MoonSweepers into File Explorer's address bar to open it.

My world won't load — is it gone?

Probably not. 1.0.3 fixed heavily cleaned worlds that looked corrupted, and since 1.0.4 the game restores damaged saves from its backups on load and tells you. Update the game first.

Can I go back to an older version?

Saves made in 1.0.4 can't be opened in older versions, and co-op needs everyone on the same version — stay on the latest.

Related guides

Sources

Checked against the current version on · High confidence — confirmed by the developers or two independent sources. Spotted something outdated? Tell us.

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