When you first join Blockate, you will see a button on the top right that lets you create your first Blockate world for free. All the worlds created after this will cost 500 Blux. If you join the Blockate Group, you will be allowed another free world. After creating a world, you will be able to manage your world and manage other players permissions with commands. In your world, you will already be able to build and have access to every command.