I am currently using the experimental build 1.2.4. Not in the current build, but previous build updates, the programmers have mentioned something about fellow astronauts discussing the crazy amounts of the rocket parts needed. I can not find the rocket parts details on what was improved. Currently, the rocket parts needed for each stage sounds so far untenable; true, rockets have the latest technologies so it should be challenging
A suggestion for methane and nanotubes to be left randomly at abandoned/destroyed bases that spawn throughout the planet They are the most time consuming items to get based on a 3D printer, bottle rack or chemlab.
I sent a suggestion to see if others have any better idea than I on reddit:
https://www.reddit.com/r/occupymarsgame/comments/1wlqkyw/methane_carbon_nanotubes_for_rocket_parts/
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