Playing around with ideas since it is summer. I have seen some maps where you have space/land mixed together. What I want to do is make something like this:
Except bigger land mass for the earth and the moon. I also like the idea of defined space corridors. What I want to know/would like is there a map terrain that already fulfil this requirement or one that can be modified, and anyone interesting helping me make this happen?

Except bigger land mass for the earth and the moon. I also like the idea of defined space corridors. What I want to know/would like is there a map terrain that already fulfil this requirement or one that can be modified, and anyone interesting helping me make this happen?