Chaos Realm

The late game: islands of strong Mogas, entered at the Tower's Rift of Chaos. Win battles there to find Chaos Shards; a Shard Compass finds them more often. Spend the shards in the Chaos shop.

To cross the Rift, beat The Terrordome (the Tower's last trainer), finish Bruno's hunt for whoever is stealing the earth's fire, and bring a level 60 Moga.

Every island has a Rift too. It takes you, for free, back to the Tower or to the start of any island you have opened.

Islands

Each island after the first opens once you have finished the Chaos story's Mage quest before it: catch a wild Mage, then learn each spell. See Classes.

Guardians

Each island has a guardian. Beating one pays Chaos Shards, and it pays again once a week. A Rift Key, found on won Realm battles now and then, lets you claim one more time.