Masteria is a World Tour region based on many areas of the world. The three towns on the continent are New Leaf City, built on the remnants of Olde Sapp Village, Haunted House, also known as the Prendergast Mansion, and Crimsonwood Keep, the newest area to be released. A new area, confirmed to be Krakia, is yet to be released.

In the GlobalMS 0.40 patch notes, Masteria is described thus:

Masteria takes its name from the many warriors who came to the continent looking to master their fate and find their destiny. It has mysteriously risen from the sea after a 1000-year absence. This once fabled continent was home to a technologically advanced civilization that used a myriad of techniques for benevolence...before the dark times. There are very few records of the final act which caused the continent to plunge into the sea, and its jewel, Olde Sapp Village to be erased from the Maple World.

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Maple World Maple Island • Victoria Island • Coco Island El Nath Mts. • Ludus Lake • Aqua Road • Minar Forest Mu Lung Garden • Nihal Desert • Temple of Time • Edelstein Zipangu • China • Masteria • South East Asia • Taiwan • Thailand • Grandis Maple World : Masteria TOWNS DUNGEONS New Leaf City Haunted House 2022 NLC Crimsonwood Keep