Baldur's Gate 3: How To Solve The Moon Door Puzzle

thegamer.com:

Early on in the first act of Baldur's Gate 3, the player can visit an abandoned temple of Selune (the goddess of the moon) that has been taken over by goblins. With a little exploration, you'll come across a small room with a puzzle inside it - there are four circular plates on the floor of the room, with four symbols showing full moons, half moons, and new moons on each.

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Solving this puzzle will give you access to the deepest reaches of the temple and serves as an entrance to the Underdark, a terribly dangerous area that you really shouldn't explore until you've hit level four and gathered all the best equipment that the surface has to offer - lest you get ganked by a Bullette or some other nasty beastie.

Updated July 27, 2022 by Ryan Bamsey: Baldur's Gate 3 is getting updates all the time, and now that we have a tentative release window, we're going over our old guides and sprucing them up. We've added some hints to the solution of this nasty puzzle and shown where to find the in-game hints, in case you want to take a crack at it yourself!

This guide was written during Baldur's Gate 3's Early Access period. As such, the details below are subject to change - things might be different in future updates or on the full release of the game.

Before attempting the puzzle, the player should ungroup the other members of the party, as this will stop them from getting in the way when trying to manipulate the circles.

The clue to this puzzle is found in the Shattered Sanctum, in the room filled with Firewine Barrels and Smokepowder Barrels. There is a mural showing four phases of the moon in a diamond formation, with the full moon on the top, the new moon on the bottom, and half moons