Making a rocket silo on fulgora is extremely trivial and very hard on Gleba given the existing available resources.

Would it be worth adding alternative rocket silo recipes, one which can be used on glebba to make it slightly easier, and one that must be used in fulgora; to make it harder?

The fulgora one could actually be a ln additional puzzle, since it could include items that require some ingenuity to source at scale rather than just mindlessly recycle until you get (sulfur is the first thing that comes to mind for me)

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senordingus, you raise a good point and there is definitely design space there. It’s beyond the scope of this particular mod. However Space Age: Hardcore Mode will release changes to Fulgora tomorrow that address this question in a different way.