Link: https://old.reddit.com/r/factorio/comments/1vd438h/mining_productivity/

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The original was posted on /r/factorio by /u/Dangerous_Three_8506 on 2026-08-02 01:03:08+00:00.

I just wanted to provide a tip [probably been provided before]. I see lots of people posting their factorys with 100s of hours missing a major component. Mining productivity!!!

I am not talking about modules but the research. So many posts say they use railworld or increase ore and they think the game is made poorly. Did you know that if you focus all your research into mining productivity then the ore is infinite? You will never get more pits after a shortwhile.

My productivity research is at around 64 and that is really easy to get. Each research is only 1000 science, so 65 is 65000 science.

I actually started a new game and swore to never get yellow science until I had 10 productivity. 10 productivity makes a 5 million pit into 10 million. 10 productivity is very cheap to research.

I use to play games without the productivity and I was so sad everytime a pit died. I would spend hours making the base bigger and getting 5 new pits and then cry they would dry up in 5 hours. Now they dry up in 100-300 hours, because I always keep the research going.