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How Long Is Moon Sweepers?

Moon Sweepers is a sandbox with a long tail, not a chaptered campaign. The only crowd-sourced length I will print is the completionist average.

StyleHoursSource
Main storyNo average yetHowLongToBeat, 2 Nov 2026
Main + extrasNo average yetHowLongToBeat, 2 Nov 2026
Completionist65.5HowLongToBeat
All styles65IsThereAnyDeal citing HowLongToBeat

What those hours are probably made of

The opening toothbrush loop is short. The time sinks that show up in guides are the factory (pressure chambers and stone presses), the $20,000 sweeper robot plus its catcher, 195 flags, survey sites, and 33 achievements. The 10,000 deposits achievement has a dedicated Steam guide, which is a hint that "done" means repetition, not a credits crawl. None of those tasks has its own timed run on HowLongToBeat, so I will not slice 65.5 hours into a fake pie.

Co-op changes the clock

Up to 16 players share a moon, and from patch 1.0.3 the crew shares upgrades. A full lobby should finish hexes faster than a solo toothbrush, but nobody has published a co-op completion time. If you only want an evening, the Roblox versions are the short free sessions. They are different games, tracked on the Roblox hub.

Early Moon Sweepers sweeping, the short part of a long completionist run
Late factory work that fills the long HowLongToBeat average

Questions

How long is the main story?

HowLongToBeat had no main-story average on 2 Nov 2026. I am not filling that with a guess.

How long to complete everything?

HowLongToBeat completionist is 65 and a half hours. IsThereAnyDeal cites 65 hours from the same project.

How many achievements are there?

The community FAQ counts 33 Steam achievements. One of them, 10,000 deposits, has its own community guide.

Sources