Crimson Desert: Spire of the Sun Mirror Puzzle (Unwavering Steps)

The Spire of the Sun gates the Unwavering Steps quest behind two layers of light puzzles: an exterior mirror circuit to open the door, then an interior beam relay up shifting staircases. Here’s the exact mirror sequence and how to climb.

Short Answer

Open the Spire door with the exterior mirrors: push the single east mirror south to light the first crystal, then set the five south-side mirrors — Mirror 1 left, Mirror 2 forward, Mirror 3 forward, Mirror 4 left → forward → right, Mirror 5 back → all the way right. Inside, interact with each floor’s mirror dial and aim its beam at the mirror directly above to shift the staircases; at the top, aim the final mirror at the red crystal to drop the last staircase to the boss.

Key Takeaways

• Two stages: an exterior mirror circuit (opens the door) and an interior beam relay (climb).
• East side: push the single dark mirror south along the floor grooves.
• South side, five mirrors: left / forward / forward / left-forward-right / back-right.
• Inside, aim each floor’s beam at the mirror above to shift staircases upward.
• Aim the final mirror at the red crystal to drop the last staircase to the boss.

How Do You Solve the Exterior Mirrors?

East mirror first, then the five south mirrors.

• East side (1 mirror): push the dark mirror south along the floor grooves until the beam connects and the crystal lights.
• South side (5 mirrors):
  1. Mirror 1 — move all the way left.
  2. Mirror 2 (at the back, by a wall) — push forward.
  3. Mirror 3 (across from mirror 2) — push forward.
  4. Mirror 4 — move left, then forward, then right until it catches the laser.
  5. Mirror 5 (the last dark mirror in a groove) — move backwards, then all the way right until it meets the laser.

When the circuit completes, the Spire of the Sun door opens.

How Do You Climb the Interior?

Relay the beam up the floors, then hit the red crystal. Enter and climb the stairs to the first mirror dial. Interact with it and aim the beam at the mirror on the level directly above; do this on each floor to make the staircases shift. Step onto each shifted staircase and repeat until the top. At the top platform, aim the final mirror at the red crystal — it activates and drops the last staircase up to the boss chamber.

FAQ

What’s the south-side mirror order for the Spire of the Sun?

Mirror 1 left, Mirror 2 forward, Mirror 3 forward, Mirror 4 left-then-forward-then-right, and Mirror 5 backwards-then-right.

How do you open the Spire of the Sun door?

Complete both exterior mirror puzzles (the single east mirror and the five south-side mirrors) so every beam connects — the door then opens.

How do you climb the inside of the Spire?

Interact with each floor’s mirror dial and aim the beam at the mirror directly above to shift the staircases upward, finishing by aiming the top mirror at the red crystal.

Related Guides

• Crimson Desert: Spire of Soaring (Toward the Nest) — another tower-puzzle quest.
• Crimson Desert: Spire of Insight Puzzle Solution — the Abyss-chain tower puzzle.

Sources

• Crimson Desert: Spire of the Sun: Unwavering Steps Mirror Puzzle — original video walkthrough by Fusion Thunder.