Master chests are chests which contain powerful items that can only be opened upon completing the storyline and by reaching rank of "Master" in 3 particular lives. Once the requirement is met, the player will receive a letter acknowledging the player's accomplishments.
King Erik's Chest
- Found at: King Erik's Chamber
Pirate King's Treasure
- Found at: Pirate Ship's Cabin
- Found at: Far east of the Deep Elderwood
Dark Sultan's Gift
- Found at: Garden of Shadows (Enter through Dark Sultan's Fortress)