https://wccftech.com/zelda-links-awakening-chamber-dungeon-zelda-maker/

The Legend of Zelda Link’s Awakening Chamber Dungeon mode was inspired by a Zelda Maker idea the team worked on, the series producer confirmed.

Speaking with IGN, Eiji Aonuma confirmed that he talked with Shigeru Miyamoto about creating a The Legend of Zelda Maker game in the style of Super Mario Maker. Aonuma pointed out that giving total freedom like in the Mario Maker games would have been complicated, so the team experimented with a more straightforward style which involved players just arranging rooms with puzzles already in it to create dungeons. Due to the room concept, this Zelda Maker idea could only be implemented in a top-down Zelda game, and so it has been developed as the Chamber Dungeon Mode in Zelda Link’s Awakening.