100% Completion Guide
What '100%' means in Moon Sweepers, in the order we recommend doing it. The cleaning itself is the easy part once robots are running; the depot grind and the flag hunt are where the hours go.
Last verified: November 2026 · Steam release build
The checklist
| Goal | Count | Notes |
|---|---|---|
| Clean the moon | 163,841 hexes | JONAS does most of it. Triggers the ending. |
| Flags | 195 | Flag Hunting Guide |
| Survey sites | 26 | Lunar Survey Sites |
| Stations discovered | All outer stations | Each has a checkpoint |
| Tool upgrades | 52/52 | Cheap once rich — buy everything |
| Achievements | All | Achievements |
Recommended order
- Play normally to JONAS. Most achievements (collection, money, first-time actions) unlock on their own.
- Drive while robots work. Drop JONAS across the moon from the Mega Rover — this earns the help-clean achievements and grabs flags you pass.
- Do the depot grind during an AFK phase. Robots clean while you deposit. See below.
- Buy all 52 tool upgrades and every suit item (jetpack, night vision) once money is no object.
- Finish the moon using the station heat map and waypoints.
- Hunt flags and sites last, on a clean moon, in the Crew Transport.
- Start a multiplayer game with a friend for the final achievement — any session counts.
Deposit 10,000 times
This counts individual deposits at the depot by hand, not kilos — so once you have Packagers and conveyors, normal play stops advancing it. Expect around three hours. What worked for us:
- Feed a constant supply of capsules to the depot door: put a Capsule Catcher near the station and run its belt so capsules spill out next to you.
- Run a conveyor straight into the depot door — then simply hold E to deposit continuously without moving.
- Otherwise rhythm: Q place one kilo capsule, F pick up, E deposit, repeat.
- Do not buy Express Dock first if you plan to grind manually: holding E half a second dumps the whole tool as one deposit.
- Achievements can lag. If your count is clearly past 10,000, restart the game and do a few more.
Tip
Earlier milestones (100 and 1,000 deposits) come naturally in the broom phase — the 10,000 is the only one that needs a plan.
Help clean 10,000 regions
Only hexes you clean — or robots clean while you are nearby — count. Leaving robots at base does not get you there. Spend a few sessions driving across unclean areas dropping JONAS and sweeping as you go; the counter climbs quickly once robots are working around you.
The last 1% of the moon
- Open the moon map at any station. Unclean and partly clean hexes are marked; the readout shows cleaned and partly-clean counts.
- Set up to 12 waypoints at once. Clear them, return to a station, set the next 12.
- Teleport between stations ($50) to cut travel time.
- Bring the Extra Wide Broom: many stragglers are a few specks that a robot pattern missed.
- A hex that looks clean but will not register can be finished by placing a JONAS on it.
After 100%
Cleaning the final hex plays the ending — see Story & Ending (spoilers). You can keep playing afterwards to finish flags and sites. The developers have said more machines and systems are planned, so a clean moon may get new things to do.