Sweep The Moon Merchant Robot Tier List for Cash Cleaning

Our tiers prioritize purchase cost, cleaning capacity, cleaning rate and movement behavior for everyday dust collection. Comet Crawler takes S tier, Dust Filter Walker A tier, Scrap Grabber B tier, and Sweep Buddy C tier.

A specialist can still be your best purchase: crystal hunting favors Scrap Grabber, while a large patch of dust gives Dust Filter Walker's surrounding-area cleaning a useful role. Choose from the current stock according to the job you want done.

Buy Comet Crawler before Sweep Buddy when both are available. At 22 Cash versus 26 Cash, it costs less while offering a higher movement-speed rating, a larger bin and a higher cleaning rate.

That combination makes Comet Crawler our first purchase for inexpensive automatic cleaning: you spend less and get stronger basic cleaning attributes. Its larger bin also gives it more room to collect dust before filling.

• Dust Filter Walker: choose it for broad-area cleaning when you can afford 93 Cash. It walks slowly and cleans a large area around itself, with a 600 Dust bin and a cleaning rate of 30/s. Its movement-speed rating is 12. We recommend placing it in a substantial dust patch where its surrounding coverage matters more than traveling quickly between scattered patches. The higher cost makes it a specialized upgrade over the inexpensive Comet Crawler.
• Scrap Grabber: choose it when crystals are your priority. It searches for crystals before cleaning. At 34 Cash, with 350 Dust capacity, a movement-speed rating of 20 and a cleaning rate of 15/s, its appeal is that search behavior. For ordinary dust collection, Comet Crawler costs less and has stronger basic stats.
• Sweep Buddy: use it as an available fallback. It automatically sweeps after deployment. If Comet Crawler is absent or sold out and you want an inexpensive cleaner during the current visit, Sweep Buddy still fills that role.

For flying cleaners and their different uses, see the drone comparison.

Meteor Merchant's announced sales window lasts 240 seconds. Offerings differ between visits, and stock is tracked separately for each player.

1. Go to Meteor Merchant after the arrival announcement and press E to open the shop.
2. Check the departure countdown, your chosen robot's Cash price and its remaining personal stock. When an offer has one unit available for you, buying it exhausts that listing for you.
3. Buy the robot before the countdown expires. The purchased unit goes into your hotbar.
4. Select the robot from the hotbar, then click a dust-covered area to deploy it. Press its hotbar key again if you want to cancel placement mode.

See the Meteor Merchant guide for the broader shop selection and purchasing details. For automatic collection and selling that pays the whole crew, use Crew Robot Bay: the first Robot Vacuum costs 50 Cash, and later additions cost more.