
Mathius |
Let's say that you a board wizard that thinks he can do better then the Gods. You decide to build your own world and shape it as you see fit. How would you go about this?
Requirements for this exercise
1. Built in the prime.
2. Built in deep space.
3. Must have a land area equal to mercury.
4. Must sustain at least 500 million humanoids.
5. Must have gravity.
6. Must have ecosystem.
7. Rules exploits work.
8. Wish can not go into dangerous territory.
9. You are a 20th level arcane caster with no mythic ability.
10. Wall spells can be cast in any orientation if they at absolute rest.
11. Spell can anchor to an orbit.
12. An object that generates 1/100th of a G can anchor a spell like a world.
Mercury=74,800,000 Km squared surface area.
I know there are those who like physics and can do the math on stuff.

Hark |

I think an ecosystem would be difficult.
I am working on the math to see if a stone ring with an internal area of Mercury would break up. If it can then we can spin it for gravity.
I'm far from a Pathfinder magic expert, but I feel like an Exotic Ecosystem is probably more within a Wizard's capabilities than a traditional one. The issue is that this ecosystem must sustain Humanoid Life, and an ecosystem of Rock Monsters is probably not going to be able to do that.

Mathius |
My disc has volume of 15 B cubic KM.
A cubic KM of rock weighs 2.7 x 10 to 12th. Total weight is roughly 4 x 10 to 22nd KG. or roughly 9 x 10 to 22nd pounds.
To lift that I need a colossal quadruped wearing a heavy lift belt that has str of 328.
An animated object has base 46 so I need to add +2 str 141 times. That means that I can build one with the need str for 765,000 GP. It even has the CP to give me the need flight and speed.

Corvino |

What sort of timeframe are you looking at? If we're talking multiple years/decades/centuries then you can acheive a huge amount with even basic tools like Wall of Stone or Stone Shape. Transmute Rock to Mud could be used as a primer to speed up the normal rocky planet to eroded (more habitable) mudball cycle.
What sort of resources can you use to make your world? Is there a GP limit? Can you repurpose unowned existing things (like asteroids) as building blocks? Could you exploit a created (bountiful, double time speed, portal) Demiplane as a source of organic matter?
It should be possible to literally build a planet asteroid-by-asteroid given time. Some sort of colossal flying construct immune to the ravages of space travel could be set to pile rocks, Sisyphus-like, until you're got your mercury equivalent. Or just move an existing barren rocky planet into the Goldilocks zone of whatever light/heat source you're using and terraform it.

Mathius |
Timeframe: If you are immortal then you have all the time you could want.
You can you any resource from anywhere as long as taking it generally go unnoticed. You do not want to attract to much attention to your world because other may come and try break it if you do. That is a good reason to limit bound creatures.
You start with the standard WBL but assume that wealth generation based on selling thing will not work. Fabricate traps and such will can get you needed resources.
I bet asteroid gathering would actually be faster then building up enough sims to use wall of stone enough to build the world. More elemental diversity to. Wall of stone can used to fuse them all together.
Demiplane is a good source of organics. You will need alot them to start up the biosphere. I was think of building several million genies and using poly any object to age the surface and create organics but that runs into the dispel problem.