The Chamber Dungeon is a new feature in the Switch remake of Link's Awakening. After completing certain dungeons, Dampé will allow you to arrange dungeon rooms you've cleared into your own custom dungeons. Completing these custom dungeons can earn you valuable rewards, including Rupees, Fairy Bottles, and even new Chamber Dungeon parts. Experiment with different layouts and challenges to maximize your rewards and creativity. It's a great way to extend gameplay.
