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Jabby

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Could someone help me with how much research i need to keep up with expansion and also any tips for traits and ethos. And also Min/Maxing minerals and energy.
 

PirateJack

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The research cost of each tech goes up by 10% for each planet in your empire and 1% of every 10 POPs in your empire.

So a tech that usually costs 100 research points in a 10 POP/1 planet empire would cost 110 points in an empire with 2 planets and less than 20 POPs, and so on.

Assuming you have the starting 5RP in each area of research it would take you 20 months to research the tech with a starting empire and 22 months in the second empire. Each point of research in a given area reduces the time it takes to research said tech, so a single research lab would reduce the time from 20/22 months to 17/19 months, respectively. The number of research labs you need to keep up with growth is, using my rule of thumb, at least three per planet or having one highly specialised research planet per 4 planets. Given the general lack of +% modifiers for research outside of edicts/policies, it's usually better to spread your research out.

At least, that's the way I play it.
 
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LordMagus

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The number of research labs you need to keep up with growth is, using my rule of thumb, at least three per planet or having one highly specialised research planet per 4 planets. Given the general lack of +% modifiers for research outside of edicts/policies, it's usually better to spread your research out.

At least, that's the way I play it.

I prefer specialised research planets, due to the tech 'improved assist research' giving 10% boost to planetary science output PER LEVEL of the science ship orbitting. So you can get an extra 50% research from a planet, and if specialised... that can give you a lot of extra research.
 
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Agamemnic

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In terms of comparative research speed, keep your research output (for each area) equal to or greater than your pop size.

This will keep you comfortably ahead of the AI.
 

PirateJack

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I prefer specialised research planets, due to the tech 'improved assist research' giving 10% boost to planetary science output PER LEVEL of the science ship orbitting. So you can get an extra 50% research from a planet, and if specialised... that can give you a lot of extra research.

I'd forgotten about that, so yeah, this is good advice.