How to light all four blue braziers in Blue Prince

There are four blue braziers outside of the house in Blue Prince. To find them, you’ll have to head outside onto the Grounds. Once they’re lit, it unlocks a permanent (it doesn’t reset) path to the Basement, but you’ll have to do a lot of work first.

Our Blue Prince guide will show you how to light all four braziers and tell you which rooms you’ll find the necessary gasline valves in to do so.

Where to find the braziers in Blue Prince

From the Entrance Hall, head outside to the Grounds. Go to the left of the Fountain and down the stairs. You’ll find all four braziers at the bottom of the steps.

All brazier rooms in Blue Prince

Lighting the braziers is as simple as turning a gasline valve. That will send gas to the brazier and it will light automatically. The trick to the puzzle is just finding the valves.

You’ll find them in the following rooms (in no particular order):

How to light the Orchard brazier in Blue Prince

Once you get the code from the Darkroom and unlock the Orchard gate, the gasline valve is on your left as you walk in.

How to light the Gemstone Cavern brazier in Blue Prince

Once you have access to the Gemstone Cavern via the Utility Closet, you’ll find the gasline valve just inside and to the right.

How to light the Outer Room braziers in Blue Prince

The remaining two gasline valves are in special rooms that can only be built outside. And to do that, you’ll need to go through the Garage and open the West Gate (and West Path).

Now you just have to draft rooms at that Outer Room door. The rooms you’re looking for are the Hovel and the Schoolhouse. You’ll only be able to draft one Outer Room per day, so it might take several tries to get both of them.

In Mr. Revane’s Hovel, the gasline valve is to the right of the fireplace (stove?). In the Schoolhouse, it’s on the back side of the heater in the middle of the room.

What does lighting all four braziers do in Blue Prince?

Now that they’re all lit, an elevator will appear on the landing where the braziers are. That elevator will take you to the Basement (which is only really useful if you have the Basement Key).