This chain of two-dozen islands will be the foundation for Perpetuum's Player-Built Settlements (or PBS, if you miss Sesame Street). Everything from the buildings to the land they're built on can be created and modified by players to make a real and lasting impact on the game world.
Settlements will be color-coded to represent its parent corporation and are incredibly complex in regards to how the buildings are linked to each other. Of course, this being a PvP game, other corporations will certainly have motive to destroy and conquer enemy territory.
[Thanks to Roy for the tip!]