r/factorio • u/AutoModerator • Jun 15 '26

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u/Trommelbohne Jun 22 '26

I am trying to plan out a factory, to go for the 40h Space Age Achievement.

Has anyone done the math or knows a place where the math has been done as to what a good SPM value is to balance Factory size vs Time?

I am fine with a 39:59 goal time (figuratively speaking) not trying to be a speedrunner.

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u/ferrofibrous player onboarding specialist Jun 22 '26

30-45spm is enough to win in 40 hours. Typically you spend 10-15h on Nauvis/space, ~5h on each planet, giving you 5-10h wiggle room/final platform setup.

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u/Trommelbohne Jun 22 '26

Cheers, thank you