Factorio Forums

I am a bit puzzled what does research cost of "Rocket damage 1 ("30T 1R 1G 1P x200") mean
I assumed I'll need Time, 200 Red packs, 200 Green packs and 200 Purple packs.
For rest of the research that seemed to hold true.

So I converted 20 alien artifacts to 200 purple packs.
BUT now ~2/3 of the research are already done and I still have 178 purple packs left.

Why?

I am posting this on "Help" to avoid my 3rd [Not a bug]

The meaning should be as you described, you need 200 pieces of each. Are you sure you didn't have some spare purple packs/artifacts when you started. In general, they are disappearing very slowly, I have to say, I never checked whether they disappear in the correct rate.

Thanks for confirmation.

I am pretty sure that the 3 spawners I destroyed gave me a total of 22 artifacts.
I used 20 produces 200 purple packs by hand, so I was monitoring the amount on a regular basis as I was inserting more in the supply chest.
I wouldn't notice if there was a small difference.

Is it a rounding error and only 1/10 of a purple pack is actually needed per round?

Ok, this seems strange. I will move this to the bug section then. Actually in my free play I noticed that I am not using many purple packs as well, so it might be some general problem.

Thank you for the report, It was actually a bug.
This is one of the few researched with conditions that showed the bug (not needed blue science pack but needed the alien one).

Repaired for 0.2.10