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Reason: needs updated to also include details of the resource buying feature, in addition to the trader
The Resource Market is a page found in the Merchant Tab, where you can call a resource trader in exchange for dark matter, like the commander / officers, or can be discovered on an expedition.
When you call him, he comes to the planet you're on at the time (if you're on your home planet, he comes to the home planet; if you're on a colony, he comes to that colony).
The trade-rate he uses is 3:2:1 (metal:crystal:deuterium). It is not a fixed rate, it can vary a bit. Every time the merchant is called, the rate is selected randomly.
You can only trade to receive as much as you have storage capacity (example: You have 1 million metal and 100 crystal, but no crystal-storage; you sell metal to buy crystal, then you can only buy max. 9,900 crystal, because then the storage is full.)
It should be noted that there are three different kinds of merchants. The merchant that you need to call should be the same as the resource that you now possess and want to trade. For example, if you have deuterium to trade, then call a deuterium merchant. As soon as the trade is complete, the merchant leaves, so plan your trades well.
You can also get a merchant through an expedition if you find a merchant whose cargo is stuck in a gravitation field. It doesn't clearly state that you get the merchant, but it says that the captain will trade with you exclusively. Then check the merchant link and you will have one waiting.
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