Advanced Asteroid Processing and Thrusters Guide

If your space platform has asteroid chunks piling up but your factory still can’t keep a Thruster fed, the fix is to stop treating those chunks like dead cargo and start turning them into a steady stream of ore, ice, water, and thruster consumables. Build the processing chain in the right order, and your platform goes from scraping by to a ship that can actually keep moving.

Unlock the right asteroid and thruster tech before you build

Start by researching Advanced asteroid processing before you try to scale travel. It requires Agricultural science pack, Production science pack, and Utility science pack, and its cost includes Automation science pack, Logistic science pack, Chemical science pack, Production science pack, Utility science pack, Space science pack, and Agricultural science pack.

Once that is done, Asteroid productivity opens up after Advanced asteroid processing, so if you want better yields from chunks, that is the line to follow next.

If you specifically need chunk-mixing options, make sure you also have Asteroid reprocessing. That research requires Metallurgic science pack and costs Automation science pack, Logistic science pack, Chemical science pack, Space science pack, and Metallurgic science pack. It is the safety valve that keeps one chunk type from clogging your platform while another runs short.

Do not plan a thruster build until Space platform thruster is unlocked. It requires Space science pack, and without it your platform cannot travel to other planets. Get that gate open first, then build the fuel chain behind it.

Set up your basic chunk-to-resource flow first

Before you chase efficiency, give every chunk type a simple, obvious destination. Use Carbonic asteroid crushing for carbon output, Metallic asteroid crushing for iron ore, and Oxide asteroid crushing for ice. Then melt the ice into water locally with Ice melting, because water is the shared ingredient that makes both thruster consumables practical.

Here is the core reference you should build around:

Use the basic crushing recipes first because they give you a clean, readable factory. Carbonic chunks become carbon, metallic chunks become iron ore, and oxide chunks become ice. That makes troubleshooting much easier. If your platform stalls, you will know exactly which resource is missing instead of juggling several side products at once.

Melt ice into water as soon as you can, and keep that water line close to your chemical production. On a space platform, ice is your practical water source, so if oxide chunks stop moving, both fuel lines can stall together.

Use advanced crushing when you need better side outputs

Once the basic chain is stable, switch to advanced crushing only when the extra outputs are actually useful to your broader platform. Advanced carbonic asteroid crushing gives you Sulfur alongside carbon, Advanced metallic asteroid crushing gives you Copper ore alongside iron ore, and Advanced oxide asteroid crushing gives you Calcite alongside ice.

Treat those recipes as output-focused tools, not your default throughput option. They take longer than the basic crushing recipes, so if your platform is starving for raw iron ore or water, do not slow yourself down just to chase side products. Instead, use them when sulfur, copper ore, or calcite is the bottleneck elsewhere on the platform.

The key habit here is to match the recipe to the shortage. If sulfur is missing, feed carbonic chunks into advanced crushing. If copper ore is needed, upgrade metallic crushing. If you want calcite and some extra ice, move oxide chunks to the advanced recipe. That keeps your asteroid line tied to your real factory needs instead of simply chewing through chunks for the sake of it.

Solve the chunk mix bottleneck with reprocessing

Use reprocessing when one chunk type backs up while another runs dry. Carbonic asteroid reprocessing, Metallic asteroid reprocessing, and Oxide asteroid reprocessing all turn one chunk type into a mix of the other types, so they are your pressure-release valve when the platform receives the wrong mix for the current demand.

Do not place reprocessing as a luxury upgrade. Put it where it can keep the feed moving whenever collectors and crushers are getting uneven deliveries. If your crushers are full of one chunk type while another line is starved, reprocessing lets you convert the surplus into something useful instead of choking the whole system.

The practical rule is simple: use direct crushing when the chunk type matches the shortage, and use reprocessing when the mix is wrong. That keeps belts clear, machines fed, and the platform from wasting time waiting on the right asteroid type to arrive.

Turn ore, carbon, and water into thruster fuel and oxidizer

Your thruster line should run from the outputs of your asteroid processing chain, not from imported emergency supplies. Feed Carbon from carbonic chunks, Iron ore from metallic chunks, Calcite from advanced oxide crushing, and Water from melted ice.

If you have the advanced recipes unlocked, aim for Advanced thruster fuel and Advanced thruster oxidizer. They are the better long-term target because they produce much more fluid per craft, but they still depend on a steady water supply. That means your first priority is not the chemical plant itself; it is the ice-to-water pipeline behind it.

Keep both fluid lines balanced. If water runs low, both thruster consumables stall at once, so do not let ice handling become an afterthought. In practice, that means expanding oxide crushing before you expand thruster production, then adding more chemical plants only after your water stream can support them.

Place and supply the thruster correctly before you expand

Build the Thruster only after you have a reliable supply of Thruster fuel and Thruster oxidizer. A Thruster allows space platforms to travel to other planets, and it must be built on the south edge of the space platform. If you place it anywhere else, you are not building for travel.

The Thruster itself uses Steel plate×10, Processing unit×10, and Electric engine unit×5. Do not rush that build just because you have the parts. The thruster is the final consumer of the whole asteroid-processing chain, so if fuel or oxidizer is unstable, the platform will be stranded with a correctly built but unusable engine.

Once the line is stable, scale by adding more crushing, more reprocessing, and more fluid production in that order. That is the cleanest way to grow: fix asteroid intake first, smooth the chunk mix second, and only then expand chemical throughput.