Quantum Chips and Unipolar Magnets Guide
Late-game factories stall in two places at once: Quantum Chips trickle in because the Plane Filter line is too thin, and Particle Containers eat through rare ores faster than your logistics can replace them. That is where planning starts to matter more than brute force. Unipolar Magnets can make the whole chain much cleaner, but they are scarce, tied to very specific star systems, and too valuable to waste on the wrong build.
Unlock the late-game chain and decide what deserves your Unipolar Magnets
Start by treating Unipolar Magnets as a premium shortcut, not a normal ore. Their biggest value is that they let you make Particle Containers from Copper Ingot alone, skipping the usual Electromagnetic turbine path. That is a huge simplification if you are trying to stabilize a serious late-game factory, but it comes with a steep trade-off: Particle Containers consume 10 Unipolar Magnets each. If you use them everywhere, you will drain deposits quickly.
The other important use is the Plane Smelter recipe, so do not think of Unipolar Magnets as “just for one item.” Even so, the same rule applies: reserve them for production lines where the simplification is worth the depletion risk. If you are deciding what gets Unipolar Magnets and what does not, favor the chain that removes the most awkward upstream steps, not the line that merely saves a few assemblers.
Here is the quick reference for what this section is really about.
| Item | Main role | Why you care |
|---|---|---|
 Unipolar Magnet |
Rare late-game resource | Found only in neutron star and black hole systems |
 |
Key late-game component | Can be made from Copper Ingot alone with Unipolar Magnets |
 Plane Smelter |
Late-game building recipe | Another use for Unipolar Magnets |
 Plane Filter |
 Quantum Chip ingredient |
Common bottleneck before Quantum Chips scale |
Find the only stars that can supply Unipolar Magnets
Do not survey randomly once you need Unipolar Magnets. Use the planetary scanner to target neutron star and black hole systems, because those are the only places that host Unipolar Magnet veins. Across an entire galaxy, there are exactly two stars that contain these deposits, and each of those stars has exactly one planet with patches. That means you are looking for a very small number of highly specific targets, not a broad resource field.
When you find the right planet, expect concentrated patches instead of scattered ore. Each patch contains 14 to 17 veins, with a 40% chance of 15 veins and a 20% chance each of 14, 16, or 17 veins. The average is 15.4 veins per patch, the average planet has 2.841 patches, and the average galaxy holds approximately 87.5 veins total. Those numbers are useful because they tell you how quickly a field can vanish if you treat it like ordinary mining. Once you locate a patch, move quickly and mine it efficiently.
Build a compact mining outpost and ship the ore interstellarly
Because Unipolar Magnet veins are grouped into small patches, a compact mining layout is the right answer. Do not spread belts and sorters across a huge footprint; instead, keep the outpost tight so you fully exploit each patch before moving on. You want the planet doing one job well: mine, buffer, and ship.
Full exploitation requires an Interstellar Logistics Station network. That is not optional if you want to make real use of the ore, because these deposits are usually on separate star systems and meant to be moved interstellarly. Set up direct shipping from the outpost to your main production hub, and avoid overland conveyor networks unless the planet is already heavily developed. The goal is to make the outpost disappear into logistics: ore in, shipment out, no extra handling.
If a deposit is exhausted, you can still get Unipolar Magnets from high-level Dark Fog drops, but only in limited amounts. Treat that as a backup trick, not a supply plan.
Stabilize Plane Filter production before you scale Quantum Chips
If your Quantum Chip line stalls, do not add more Quantum Chip assemblers first. Check Plane Filter throughput, then check Casimir Crystal supply. Plane Filter is a Tier IV component with very limited uses, and its main purpose is Quantum Chips. That makes it the part you should scale deliberately, not something you stockpile blindly.
The simplest planning rule is the 1:4 speed ratio: one Assembling Machine making Quantum Chips needs four Assembling Machines making Plane Filters. If you underbuild Plane Filters, the whole chip line starves no matter how many final assemblers you add. Upstream, one Assembling Machine Mk.II making Casimir Crystals is enough to supply three Assembling Machines making Plane Filters, and five Assembling Machines making Titanium Glass are enough to supply 12 
Plane Filter belongs in a broader late-game chain, not as an isolated item. It is mostly a Quantum Chip ingredient, with only a small extra role in Plane Smelter manufacture after Mission Completed! So if you are deciding where to expand first, put your effort into the inputs that hold the whole chain together: Casimir Crystals, 
Titanium Glass, and the dedicated Plane Filter assemblers feeding Quantum Chips.
Use the Arc Smelter to support both the magnet and crystal sides of the factory
The Arc Smelter is your standard late-game support tool because it needs electricity but no fuel. That makes it the building you lean on whenever ore processing, 
Magnet production, or crystal-related recipes need to scale without adding more fuel logistics. It is also one of the most commonly deployed buildings in the game, so you should automate its production early instead of hand-crafting replacements every time you expand.
For this chain, the Arc Smelter matters on both sides. It supports Magnet production and crystal-related recipes such as Crystal Silicon, which means you will often need a lot of it exactly when your factory is already under pressure. Do not underestimate smelter demand when you establish an outpost. Bring a substantial stock, and bring the materials to make more on site, especially Stone Bricks. That one detail saves many expansions from stalling the moment ore throughput rises.
As a practical rule, think of smelting capacity as something that grows with the project. If you are setting up a new mining base or adding support for a late-game intermediate, bring extra Arc Smelters and the parts to craft more. That way your new line keeps up instead of collapsing as soon as the belts fill.
Put the bottlenecks in the right order
If you want the cleanest path forward, build in this order: secure a Unipolar Magnet source, ship it through Interstellar Logistics Stations, stabilize Plane Filter production, and only then expand Quantum Chips. At the same time, keep enough Arc Smelter capacity on hand to support the ore and crystal side of the factory. That sequence keeps you from wasting rare ore on a line that cannot yet consume it and stops Quantum Chips from starving because Plane Filters were underbuilt.
The main mistake to avoid is treating Unipolar Magnets like a general input. They are not. Use them where they remove real complexity, keep the mining outposts compact, and scale the chip chain around the Plane Filter bottleneck. If you do that, late-game production stops feeling fragile and starts behaving like a system you can actually grow.