Imagine several people building a sand castle at the beach. Anyone can join, just start building your own little tower and then connect it to the main castle (this is instances explained). You can also invite anyone to work on your specific part of the castle and build the tower with you (users joining an instance).
Imagine several people building a sand castle at the beach. Anyone can join, just start building your own little tower and then connect it to the main castle (this is instances explained). You can also invite anyone to work on your specific part of the castle and build the tower with you (users joining an instance).