How are player servers created?

[Nalif]

If someone wants to create their own Graal world, and have it as a player server, is that possible? How exactly are the player worlds chosen?

I'm a very new member to the community, so I don't know how a lot of stuff works. I used to work a lot with 3D Game Studio, and RPG Maker 2000, because I had this world I wanted to create. Neither could do it very well though. Graal looks like it would be perfect for it, if I would be able to do that. I'm going to include some pictures I've been working on. The first will be of the minerals that are in my world, and the second will be of some creatures I have been practicing with (I'm new to pixel art. Normally I do 3D stuff, but I think they turned out alright) .