Dungeons you can unlock. Because there is a limited amount of space in the how to unlock part I'll include more information of getting Obsidian tower here. Obsidian Tower: You have to have your store leaning towards a dark atmosphere to get Griff to come in and it has to be during one of the 2 last slices of time. Then the next day Louie will enter your store and tell of the new dungeon.
|Unlockable:||How to unlock:|
|Amber Garden||(Must have Charme)View event in town square of Tielle chasing after her sister. Charme will then come into your store later and tell of a new dungeon.|
|Crystal Nightmare||Clear Lapis Ruins.|
|Jade Way||Clear Hall of Trials|
|Lapis Ruins||Pay off the debt and unlock every adventurer besides Arma. Arma will come into your store and unlock this dungeon for you.|
|Obsidian Tower||After beating Tielle in Amber Garden, see both night events in town square with Griff. After, he comes into your store to give a warning.|