Disney Dreamlight Valley

While the Plaza and Peaceful Meadow are accessible from the start of the game, all other biomes require a certain amount of Dreamlight to unlock. You'll need a total of 41,000 Dreamlight to unlock them all, and I highly recommend unlocking them in order from cheapest to dearest as follows:

Dazzle Beach - 1,000 Dreamlight
Forest of Valor - 3,000
Glade of Trust - 5,000
Sunlit Plateau - 7,000
Frosted Heights - 10,000
Forgotten Lands - 15,000

Like the other achievements, it won't pop until you collect the Starlight reward for it from either the wells or pause menu.