How do I unlock a new island?

New islands open as you progress through the story tasks on all the islands. To unlock the next island, you need to finish all the story tasks on the current one. In some cases, a certain game level may also be required to open a new island. Event Islands open regardless of whether you passed the story islands or not, since these are separate events, for which the islands open for a certain time frame. To unlock a new story island, play and complete tasks, moving along the main storyline of the game.