[Power Man]

How to build a ring or sphere world. In the Un Modded game.
First you need to study for the required tecks.

You need to get way up in Stellar Manipulation to get the Cable, Plate, and Ring world ship components.
The Sphere world component is, I think the Last level.

You also have to study Star Base construction to the end as well.

You will also need a fleet of ships with the Shipyard component ( I like to use a set of 11).

Design 3 types of the largest star base.
One with the Ring or Sphere World unit.
One with the Plate component.
One with the Cable component.

Pick a star, hopefully somewhere in your area, and start sending your construction ships there.

The first ship there should start the Ring or Sphere Star Base. This will take almost 3 Years to build.
The other ships should build the Plate and Cable Star bases. They take almost a Year to build.

For the Ring world you need a base with the Ring world unit. You need five bases Each of the Cable and Plate units.

For the Sphere world you need a base with the Sphere world unit. You need ten bases Each of the Cable and Plate units.

I usually mothball the Plate and Cable bases until the Ring or Cable base is done. I then Un-mothball them when ready.
Once all of the bases are done you select the Ring or cable base and give it the Construct Order.

All of the bases are then assembled into the Ring or Sphere world. It will have your Race's atmosphere and native planet type.

Just send a colony ship and Lots of People and you will have a nice new colony.
A Ring world has room for 100 facilities. It has like 150% of all resources. It holds Lots of population.
I forget what the Sphere world has. But I hope to find out soon.

Not I Just finished my first Ring world in my current game. I have a second one on the way. I am going to start a Sphere world soon, but the Last level of Stellar Manipulation is over 3 Million points!!!!