Gaming How-To

Fortnite Stone Sanctum Vault: How to Open the Secret Chamber

Break two stone pillars for Temple Vault Keys, feed the courtyard dials, and drain the pool to reach the loot below.

Break two stone pillars for Temple Vault Keys, feed the courtyard dials, and drain the pool to reach the loot below.

Stone Sanctum hides a loot room under its central pool, and cracking it open is a short puzzle rather than a key-hunt across the map. You need two Temple Vault Keys pulled from hidden pillars on the site, then a quick trip to the courtyard to drain the water and drop inside. Move fast, because this is a high-tier spot that other players rush early.

Quick answer: Break the two glowing stone pillars on Stone Sanctum’s rooftops to get two Temple Vault Keys, place one key in each of the two circular dials in the central courtyard, and the pool drains to reveal the vault entrance below.

Image credit: Epic Games

Where Stone Sanctum is on the map

Stone Sanctum sits in the southern half of the island, just south of Geno’s Machine. It’s a named location, so you can mark it straight off the Battle Bus and glide directly onto the structure. Landing on the higher ledges first saves time, since that’s where the keys are.


How to open the Stone Sanctum vault

Head to the upper ledges and rooftops on the east side of Stone Sanctum, near the north and south corners. Look inside the lower room of each corner for a small stone pillar. As you approach, an invisible container appears on the plinth.
Image credit: Epic Games
Break the container with your pickaxe to drop a Temple Vault Key. Pick it up. You can only carry one key at a time, so you’ll come back for the second one.
Take the key to the central courtyard. There’s a ring of water around the middle with two circular disc dials on plinths, one on each side. Interact with the first dial to insert your key.
Image credit: Epic Games / Comrad3s
Go back to the second pillar in the opposite corner, break the container, and grab the second Temple Vault Key.
Return to the courtyard and place the second key in the other dial. Once both dials are filled, the pool drains and opens the way down. Drop into the chamber that’s now exposed in the center.
Image credit: Epic Games

How to know it worked

The confirmation is the water. When both keys are in place, the central pool empties and the drop into the vault opens. If the water is still full, one dial is missing a key. Because you carry keys one at a time, it’s easy to insert one and forget the second trip.

Why the vault won’t open

ProblemFix
Only one dial is filledBoth dials need a key; deliver the second one
Still carrying one keyYou can hold only one at a time, so make two trips
Can’t find a pillarCheck the lower rooms in the north and south corners on the east side

What’s inside the vault

The chamber holds three Rare Chests, Slurp barrels to top off shields, and other high-tier weapons and items. In public matches, cheat codes also appear on the walls or floor, and those unlock Sprites, which makes this one of the faster ways to fill out a Sprite collection early in a match.

Note: This is a contested location. The keys are close together and the puzzle is quick, but plenty of players know the route, so expect company and be ready to fight over the drain.