Plan your Moon Sweepers factory. Build it once.
Pick what you want to produce. Foundry lays out the machines, belts, power and cost, and shows where every number comes from.
From a target to a working line
Pick a target
Say what you want out of the line, like 100 kg/min of Moonstone, or start from the dust you can collect.
Read the line
Foundry counts the chambers and presses, splits the belts, sizes the solar field and points at any machine that starves the rest.
Build it once
Place it in the game knowing it adds up. Plans stay in your browser and export as JSON when you want to share them.
Everything the line needs, worked out
See the whole factory before you place a belt
Every machine is a node, every belt an edge with its kg/min. Ask for 100 kg/min of Moonstone and the planner splits 100 kg/min of dust between chambers and presses, then checks each belt and port can carry it.
Size the solar field to the load
The line above draws 110 kW. That is 7 Solar Trackers for $2,100, or 15 Solar Twins for $2,250. Night length and battery capacity are unpublished, so Foundry asks you for them instead of guessing.
Load of the 2:5 line 110 kW
- Solar Tracker (L)×7$2,100
- Solar Twin (M)×15$2,250
Ratios that leave no machine waiting
A Pressure Chamber makes 25 kg/min of sand and a Stone Press uses 10. So one chamber covers 2.5 presses, and 2 chambers to 5 presses turns out 100 kg/min of Moonstone with nothing idle.
Guides for the questions players ask
All guides- Pressure Chamber vs Stone Press ratio in Moon SweepersHow many Stone Presses one Pressure Chamber feeds: 2 chambers to 5 presses is balanced. Kg/min, power and cost for 1:1, 1:2, 2:5 and 4:8, with sources.
- How many solar panels do you need in Moon SweepersSolar Post, Twin and Tracker compared: peak kW, cost and how many panels power a Pressure Chamber and Stone Press by day. Night storage is unknown, and we say so.
- J.O.O.N.A.S. and Capsule Catcher setup in Moon SweepersHow J.O.O.N.A.S. picks a Capsule Catcher, what the 100 m group and 80% rule mean, what to connect to the OUT port and why the dust per minute is still unknown.
- Conveyor throughput, splitters and mergers in Moon SweepersA conveyor lane carries at most 88 capsules per minute in the ideal model. How that becomes kg/min, how splitters and mergers behave, what is unknown and what a lane costs.
- Best upgrade order and how to make money in Moon SweepersWhere the money comes from in Moon Sweepers: prices per kg, the additive payout formula, economy upgrade costs and a payback method to order upgrades, with the unknowns flagged.
How much Moonstone do you want?
Change the target. The same engine as the planner sizes the line in your browser.
Machines round up to whole units. Solar sized for daylight; set the night in the planner.
- Dust in
- 100 kg/min
- Power
- 110 kW
- Build cost
- $8,120
- Margin
- $600/min
Questions, answered
Is Foundry an official Moon Sweepers tool?
No. Foundry is an unofficial fan tool, not affiliated with, endorsed or sponsored by DragDrop Games. It uses none of the game art: every drawing and icon is made for Foundry.
Is it free? Do I need an account?
It is free and needs no account. The planner runs in your browser, saves plans there, and imports and exports them as JSON files.
Where do the numbers come from?
The studio has published no machine figures, so costs, power and cycle times come from community databases and game-file extractions. Each one shows its source, game version (1.0.5) and confidence, and unknown values stay unknown. See data and sources.
How many Pressure Chambers do I need per Stone Press?
One Pressure Chamber makes 25 kg/min of sand and one Stone Press uses 10, so one chamber feeds 2.5 presses. A 2:5 line makes 100 kg/min of Moonstone for 110 kW. The ratio guide has the full table.
How many solar panels does a chamber and a press need?
Together they draw 28 kW, which 2 Solar Trackers cover in daylight. Covering the night depends on battery capacity and night length, which are unpublished; the solar guide shows how to size it once you know them.
Will Foundry keep up with Update 1.1?
Machines and resources are data entries, so content announced for December 2026 can be added without rewriting the planner. Pages for new machines appear as soon as their data does.
Plan the next line tonight. Build it once.
Start from the 100 kg/min line above, $8,120 all in, or from a blank canvas. Free, in your browser, no account.
Open the planner