I take the +1 speed bouns at the begining for starters.
I set the tax rate to around 45% and spending to 100%.
I set the military slider at 100% and crank out colony ships until the surrounding sectors are claimed, then I B-line the tech to get impulse engines.
The first colony ship, I colonize the second Sol planet if there is one, if not, I grab the nearest system with it, build a scout, then colony ships.
When a colony ship is finished, I load 200M pop on it, so it can produce at least one 100M colony ship from the git. When Earth can afford the population, I load 300M on the colony ships. Makes farther systems easier to obtain, as whatever system it colonizes, it can produce two ships close by. If the target system is in a corner, then I only load 100M, as it will not be producing colony ships.
When a planet has <200M pop, I build constructors. I usually only build the one scout from the initial colony ship. Don't need more than that. And I try to send it out in front of the Hero. Sending it in the other direction don't do much good. I might build a second scount, if I have possible colonization targets in several directions, but I try to keep that first scout and the Hero married (half a sector apart or so). (read: first scout hunts anomalies, second scout hunts for planets.)
Then it's constructors for the better part of the game.
Note: While doing a B-line for impulse, if a target comes up, I will monkey the slider to get another colony ship built within 2 turns, 3 at the most; but if nothing is sight, then all tech. I try to avoid the anomolies that are of the +25% to research project until I am researching impulse, otherwise they are really wasted.
Once the colonization phase is over, I go for tech until I get the basic techs out of the way (level one for all areas, up to diplomacy in that area).
After that, I do my social building. Banking/Manu Ctr/Soil enh.
Then best PQ planet gets the diplomatic traslators queued, followed by gravity accelerators. By that time, I can usually build the manufacture captial there, will have met a race or two, sold my techs so I can keep spending at 100% and decide who gets eradicated first. The best PQ also builds all the freighters, as it will be the economic captl as well.
Edit: No, I don't rush buy any colony ship
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