L3O Horizon Game

I think you can dig on the planet with ancient ruins (if you have a ship in the system) and thereby possibly gain a new technology. There is some sort of planet bonus that will provide advanced buildings on a planet if you found a colony there, but I don't know if ancient ruins is that bonus. I don'...

So to get a mining colony you have to have no buildings other than industry?

Exactly how much of a bonus to income does a mining colony provide?

Does the industry have to be maxed out before the extra bonus accrues?

I've observed that gold gives a bonus of 250 million credits in tax revenue from the start, but that does not seem to increase when I build the first industry building.