The main goal of Blue Prince, at least at the start of the game, is to find Room 46. At the very north side of the Estate, you will see a room called the Antechamber. To get to Room 46, you must first unlock the Antechamber.

Blue-Prince-Picture-Puzzle-Solution-44-Letter
Blue Prince: Picture Puzzle Solution (44-Letter Secret Code)

In each room of Blue Prince, you can find two drawings, and each of them holds a secret message for Simon to learn more about the house.

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To unlock the Antechamber, Blue Prince players must find one of three Antechamber Lever locations, then draft rooms that lead to the side of the Antechamber that was opened. Blue Prince players can use this guide to learn how to get into the Antechamber and where to find every Antechamber Lever location.

How To Open The Antechamber In Blue Prince

Blue Prince Antechamber Puzzle, Explained

Blue Prince Unlock Open Antechamber Door Lever Locations All Antechamber Levers West Door

To unlock the Antechamber, Blue Prince players must open at least one of the three doors on the room's east, west, and south sides, then draft rooms to connect to the unlocked doorway. You cannot use Keys or Keycards (or manipulate the Estate's power) to open these doors – you must pull one of three Antechamber levers Blue Prince hides around the house.

There are three locations where you can find Blue Prince Antechamber lever locations: two that are complete and ready to be pulled, and one that's broken and requires you to also find a Broken Lever item.

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Lever Location One

The Secret Garden

Blue Prince Unlock Open Antechamber Door Lever Locations All Antechamber Levers Secret Garden 1

The first Antechamber lever that most players will find is in the Secret Garden. This not-so-secret floorplan can only be accessed if you find the Key to the Secret Garden, then unlock a locked door with this special key on the perimeter of the Estate on the far left or right sides.

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In Blue Prince, the Boiler Room can be used to power up other rooms, but you have to activate it by solving the Boiler puzzle first.

This large, outdoor floorplan features lots of Dig Spots and sometimes food items, but pay attention to the fountain and the wind vane on top of it. If you align each arrow to face towards the wall on the far east or west (depending on which side you drafted the Secret Garden on), you will reveal an alcove that contains an Antechamber Lever.

This lever is complete and ready to be pulled. When activated, the lever in the Secret Garden will open the east (left) side of the Antechamber.

Lever Location Two

The Great Hall

Blue Prince Unlock Open Antechamber Door Lever Locations All Antechamber Levers Great Hall 1

The Great Hall is a bit of a trickier spot than the Secret Garden when it comes to Antechamber lever locations. This is because, while the Secret Garden can be unlocked if you find its key and draft in a specific location, the Great Hall features seven locked doors in a layout that changes between runs.

Behind one of these doors is a complete Antechamber Lever, but it's trickier than it seems. You can reference a miniature model of the Great Hall in the Drafting Room to see today's layout, use a Lockpick to open a few doors and reduce your number of Keys used, or if you have a lot of extra Keys (or the Master Key), just go ham and unlock them one by one.

When activated, the lever in the Great Hall will open the west (right) side of the Antechamber.

Broken Lever & Handle Location

Bring A Broken Lever To The Greenhouse

The last, and most complex, method to open the Antechamber in Blue Prince requires you to draft the Greenhouse (a special Green Room) and find a Broken Lever somewhere on the Estate. Because of the RNG element of Blue Prince, finding a Broken Lever is easier said than done, let alone hoping to get a Greenhouse floorplan.

Typically, Broken Levers can be found in mechanical rooms and other special rooms, though it is not a guaranteed item. You can also find Broken Levers in Dig Spots, especially if you draft the Root Cellar in the Outdoor Room slot, which significantly increases the number of Dig Spots in the Estate for the day.

The Greenhouse has a 1-Gem cost to draft, and will typically contain Dig Spots alongside a guaranteed Music Sheet, part of the larger Music Sheet puzzle. Look on the wall of the Greenhouse to find a broken-off Antechamber Lever.

With a Broken Lever in your inventory, hover over the broken handle, re-attach the lever, then pull it to open the south (bottom) door of the Antechamber. If you find a Broken Lever but can't draft a Greenhouse, consider storing it in the Coat Room for a later run.

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Blue Prince
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Released
April 10, 2025
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WHERE TO PLAY

SUBSCRIPTION
DIGITAL
Checkbox: control the expandable behavior of the extra info

ESRB
Everyone 10+ / Alcohol Reference, Simulated Gambling
Developer(s)
Dogubomb
Publisher(s)
Raw Fury
Engine
Unity
Genre(s)
Puzzle, Adventure, Exploration, Strategy
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