The WBC must decide what items will be shared and what will belong to each WBO. As suggested by the Continent Master role, it is wise to let each member of the WBC own a continent. However, other divisions can be made, such as Sovereign Power Master or Settlement Master, Forest Master, or even Species Master, Plant Master, and Animal Master. What these have in common is that someone has responsibility and authority for an item and cannot be overridden by other members of the WBC (unless failing in their duties). By contrast, there are shared issues that the entire WBC must decide upon, such as by majority vote. These are often planetary-wide concerns. A potential list of shared items includes:
- The number of and placement of continents
- The name of world oceans and bodies of water adjacent to multiple continents
- The number of gods and basic disposition, if the gods are real and worldwide
- What species/races exist, especially if worldwide
- The number and features of moons and other heavenly bodies such as rings, other solar system planets, and sun type
