I'm wondering if there's anything in Hyground tiles that would be printable for us, especially for asteroid terrain. We could just find some minis and do them as DOs, though. (
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L0B5T3R
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For the industrial terrain we could reuse concrete or road tiles, or try to come up with something new that's of the Hyground printable variety.
Depending on how we want to do the Cosmos spaces, we could either do something Hyground printable or just try to do a mat, like I posted in the OP.
Not sure on the scale, but
here's a potential option for the mat route: