Games : What is the math behind Plague Inc DNA points?

This is a two part question. The reason I am asking them in the same question is because they are both part of a broader question: What is my DNA point income so I can effectively ration which upgrades I am going to buy?





  1. How many DNA points do I get naturally, in the two waves of infecting people?


All difficulty levels. This is almost, but not quite, a duplicate of Why doesn't population death yield DNA points?; this question is about the actual number of DNA points I get naturally. It's certainly not a function of time, because of the long pause you can get between the "infection phase" and the "killing phase".



  1. What is the mathematical effect of the different game start DNA upgrades?


Again, for all difficulty levels. Specifically, what is the Expected Value of DNA points for the different Genetic Code upgrades:



  • ATP Boost

    • Get bonus DNA at the beginning

    • Seems to be 9-10 or so



  • Cytochrome Surge

    • Get more DNA from popping orange, DNA bubbles

    • I've gotten what seems to be +7 DNA from a single orange bubble, where the highest is +3 without this upgrade. The +7 was on normal though, I don't recall getting this on Brutal.

    • Side note: what governs when orange bubbles appear?



  • Metabolic Jump - Get more DNA from popping red, biohazard bubbles

    • I'm not even sure what this upgrade does. I know sometimes I get 2 points from a bubble, other times 1, and without this upgrade I only seem to get 1. I've only played with this upgrade on Brutal.



  • Catalytic Switch - Get bonus DNA from popping blue, cure bubbles

    • This can be a lot of DNA points, but obviously only in late game.



  • Metabolic Hijack - Orange and red bubbles are automatically popped

    • Obviously worth zero.




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