Regional coin

Regional coins, also known as purple coins, are one of the main collectibles in the game. Most kingdoms have regional coins, with the exceptions being Cloud Kingdom, Ruined Kingdom, Dark Side, and Darker Side. They can be found in each kingdom's overworld, as well as some sub-worlds. Each kingdom's regional coins are a different shape. Regional coins can be used to purchase outfits and souvenirs. Each kingdom's regional coins are shaped differently and can only be used in the kingdom in which they were found. Some kingdoms, typically the smaller ones, have 50 regional coins, and others, typically larger, have 100.

Kingdom	Regional coins
Cap Kingdom	50
Cascade Kingdom	50
Sand Kingdom	100
Lake Kingdom	50
Wooded Kingdom	100
Cloud Kingdom	None
Lost Kingdom	50
Metro Kingdom	100
Snow Kingdom	50
Seaside Kingdom	100
Luncheon Kingdom	100
Ruined Kingdom	None
Bowser's Kingdom	100
Moon Kingdom	50
Mushroom Kingdom	100
Dark Side	None
Darker Side	None