Blue Prince Guide Reach Room 46 Antechamber Puzzle Solution Walkthrough

Unlocking the secrets of Blue Prince begins with a single, elusive goal: reaching Room 46. Hidden deep within the enigmatic Mount Holly Estate, this mysterious chamber holds the key to claiming your inheritance-but getting there is no simple feat. From solving intricate puzzles scattered across the mansion to navigating underground passages and mastering the art of room drafting, every step brings you closer to unveiling the heart of Blue Prince’s mystery. Ready to uncover what lies beyond the locked doors? Here’s your definitive guide to reaching Room 46 on PC, PlayStation, and Xbox.

In Blue Prince, you play as Simon, a 14-year old child who has inherited the will of his wealthy grandfather – under condition that you can find the elusive Room 46. Room 46 is a hidden and rumored room that can only be found at the northernmost end of the estate, but since the mansion’s floor plan changes every day, how are you supposed to reach such a room?

In this Blue Prince guide, we’ve given you a full walkthrough on how to reach Room 46. Take note that while we’ve taken steps to partition out segments, this guide still covers some spoilers on specific Blue Prince puzzles.

How to reach Room 46 in Blue Prince

To reach Room 46 in Blue Prince, your main objective is to navigate through the Mount Holly estate to find and unlock the Antechamber, which serves as the gateway to Room 46. This involves exploring over 40 rooms, solving puzzles, and unlocking four Antechamber gates-west, south, east, and north-each requiring specific levers or puzzle solutions scattered throughout the manor. Key steps include visiting the Secret Garden to align wind vanes for the western gate, finding a broken lever in the Greenhouse for the southern gate, and solving mechanical puzzles like the rotating gear platform in the Reservoir area. Once all gates are unlocked, you can access the Antechamber, where pulling a lever behind a room with eight locked doors will finally open Room 46, allowing you to complete the main quest and claim the inheritance.

There are many routes to reach Room 46 in Blue Prince. You can actually get there in one day with a bit of luck and a lot of information, but this walkthrough will instead focus on taking a route with minimized randomness. We can’t control your RNG, but we can offer some universal advice.

Before you start.

Before we get into the meat of the walkthrough, we recommend that you unlock as many permanent additions as you can. While our guide will ask you to unlock just one permanent addition, these upgrades to the house will drastically help you on your days as they’ll provide you with extra starting resources and another way to reach one of the mandatory rooms to finish the game.

Additionally, make sure to keep an eye out for these items:

• Broken Lever
• Battery Pack
• Sledgehammer

These items aren’t necessarily required to reach Room 46, but they can combine to make the Power Hammer, which can make your journey a lot easier. The Power Hammer can break walls to reveal hidden Antechamber Levers and corridors that allow you to save steps and time. (That said, save the Power Hammer in your Coat Check for later use!)

Blue Prince walkthrough overview

In brief, here’s the steps of how to reach Room 46 and claim your inheritance in Blue Prince:

• Step 1: Unlocking Outer Rooms
• Step 2: Traversing the Tomb
• Step 3: Unlocking the Antechamber
• Step 4: Finding the Basement through the Foundation
• Step 5: Getting through the Basement
• Step 6: Unlocking Room 46

Some of these steps aren’t necessarily required to reach Room 46, but, as noted before, this route will provide you with a few permanent changes that’ll make your journey easier day to day.

Step 1: Unlocking Outer Rooms

Step 1: Unlocking Outer Rooms in Blue Prince involves securing permanent access to key external areas of the estate, which is essential for progressing toward Room 46. This is achieved by drafting specific rooms such as the Utility and others that allow you to open the West Gate, granting permanent entry to the West Path. Unlocking these Outer Rooms enables you to revisit them daily, which is crucial since the estate’s layout shifts every day. This step lays the foundation for navigating further into the estate, including reaching the Tomb and eventually the Antechamber, both critical milestones on the path to Room 46.

Outer Rooms are one of the many permanent additions in Blue Prince, and can be unlocked by drafting the Garage and Utility Closet in your estate, and using the two to open the West Gate and reveal the West Path as a permanent addition. (The Garage door can also be opened if the Boiler Room is powered and connected to the Garage, but the chance for that happening is a little more rare.)

For more details, see our guides on how to open the Garage door and how to open the West Gate, but the key takeaway here is to make sure to unlock the gate, so you can revisit the Outer Rooms at the start of each day.

The Outer Rooms function similarly to the rooms inside the estate, as they must be drafted every day, but the room you’re looking for is the Tomb.

Step 2: Traversing the Tomb

To traverse the Tomb in Blue Prince, you need to interact with a series of statues that correspond to stained glass windows in the Chapel. Activate each statue in the order they appear there, starting with the Gardener and ending with the Queen. Successfully doing so will reveal a hidden wall, granting access to the Abandoned Mine. From there, pull the minecart backward until it stops, which is a crucial step for later puzzles. This careful sequence of actions opens the path forward in your quest to reach Room 46.

Inside the Tomb, you’ll find statues that resemble the stained glass windows in the Chapel. To progress, you’ll need to activate each statue in the same order as they appear in the Chapel by interacting with the arm holding the item:

1. Gardener – Rimmed hat and a hoe
2. Chef – Chef hat and a pizza peel
3. Farmer – Cowboy hat and a rake
4. Chimney Sweep – Top hat and a brush
5. Maid – Bonnet and a broom
6. Jockey – Riding helmet and a racing whip
7. Queen – Crown and a scepter

This will lower a secret wall and reveal a path that takes you to the Catacombs. Inside, you’ll find a lot of coffins, a large arrow, and a statue of Draxus, a skeleton wielding a scythe. Interact with the arm holding the scythe to lower yet another secret wall, revealing a path to the Abandoned Mine.

As soon as you step onto the path, turn to the left to find a minecart. Interact with the minecart and pull it backwards until it can’t move further. This won’t have an immediate effect on your day, but it’ll be necessary for a step later down the line. With that done, you can return to the daily program of trying to reach the Antechamber.

However, that’s not all there is to the Tomb. To learn more about what secrets lie in this crypt, check out our guide about all Tomb puzzles.

Step 3: Unlocking the Antechamber

To unlock the Antechamber in Blue Prince, you first need to navigate through the Underground area by solving the rotating gear puzzle. This involves interacting with a gear platform and lever system that, when manipulated correctly, creates new pathways. Along the way, you must also use a minecart by pulling it backward to trigger further puzzle stages. Once you reach the Antechamber, you will find a box rising with the Basement Key, which is essential for progressing deeper into the estate. Unlocking the Antechamber sets the stage for accessing Room 46, bringing you closer to uncovering the estate’s secrets.

Unlocking the Antechamber may seem like the penultimate goal, but it’s about the midway point of your quest to find Room 46. To enter the Antechamber, you’ll need to unlock one or more of the east-, south-, or west-facing doors and build a path to the open door.

Each door can be unlocked by finding and activating one of its associated levers hidden in the Secret Garden, Greenhouse, and Great Hall, alongside additional locations. See our guide on where to find all Antechamber levers for more details.

Before heading into the Antechamber, you’ll need to make sure you have enough steps to reach either the Foundation or Coat Check from the Antechamber because you’ll need to do some extra walking.

In one day, you’ll need to [deep breath] unlock one of the Antechamber’s doors, connect a path to the Antechamber, collect the Basement Key inside, and unlock its associated door. (The key can also be left in the Coat Check to be used on a later day if you can’t accomplish all of that in one go.)

Step 4: Finding the Basement through the Foundation

To find the Basement through the Foundation in Blue Prince, you first need to draft the Foundation room, which uniquely remains in the same position each day, usually within the middle three columns of the estate grid. Inside the Foundation, there is an elevator initially out of reach; to lower it, you must locate and activate a hidden lever on the wall opposite the Foundation door. Once the elevator is lowered, you can ride it down to a door secured with the Basement Key, which you should have obtained from the Antechamber. Using the key here grants access to the Basement, opening up new pathways essential for progressing towards Room 46.

The Basement Key can open two doors around the estate: the door at the bottom of the Foundation and the door at the bottom of the drained Fountain. This walkthrough covers the route through the Foundation.

One of the most important rooms in Blue Prince is the Foundation. The Foundation is a room that defies the rules of the estate, as it will stay in the same position every day. It’s a rare blueprint, so the odds of it appearing aren’t very high, but if it shows up as an option, you should draft it.

As its location is permanent and it’s a room you’ll need to go in and out of, you might be worried about its placement on your grid, but you should know that it’s only capable of appearing in the middle three columns and the rank you place it at has its pros and cons.

When placed in higher ranks, it’s going to be harder to reach, but you will need to traverse between the Antechamber and Foundation in order to complete the game. The closer it is, the fewer steps you’ll need to take. On the other hand, when placed in lower ranks, the pros and cons are reversed.

Inside the Foundation, there’s an elevator that’s a little too high off the ground to reach, and you’re going to need to lower it down to ride it to the basement. To lower the elevator, you’ll need to draft a room with a door that connects to the Foundation’s wall without a door. As you try to enter the Foundation from the other side, you’ll find a lever that lowers the elevator to the ground.

After activating the lever, return to the Foundation and ride the elevatordown and permanently unlock the door with the red symbol using the Basement Key.

Step 5: Getting through the Basement

To get through the Basement in Blue Prince, first use the Basement Key obtained from the Antechamber to unlock the Basement door, typically accessed via the Foundation room. Once inside, navigate the cluttered area by moving boxes to create a path across gaps and reach the Reservoir section. Clear the minecart from its track near the rotating platform to unlock further progress. Then solve the rotating gear puzzle by manipulating levers to open pathways leading closer to Room 46. This area is complex, involving multiple puzzles and platforming challenges, but mastering these steps is essential to advance toward the Inner Sanctum and ultimately unlock Room 46.

With the door unlocked, you can now enter the Basement through the Foundation. The Basement is full of boxes, filing cabinets, your typical basement storage, but the most important of all are the jacklifts, the carts with stacks of boxes on top, and a button that is a little too high to reach.

To press the button, we’ll first need to shift the jacklifts to create a passage leading to the opposite side of the L-shaped room. Here, you’ll find more cabinets and boxes, but also a set of stairs that is surrounded by boxes along one wall and a ramp leading up to the top of a line of boxes along the opposite wall.

To reach the stairs, you’ll need to create a bridge between the two walls using a jacklift and a powered jacklift, which can raise and lower its height. Once the bridge is complete and you descend the stairs, push the powered jacklift straight across to the opposite wall and raise its height to create another pathway.

This pathway will lead you to the button, but first, you’ll need to create another bridge with three jacklifts. Reuse the two used for the first bridge and the jacklift that can move parallel to the pathway to connect the boxes. Once the bridge is complete, return to the ramp from before and push the button at the end of the path to reveal a secret passage way into the Reservoir.

(This step is entirely optional, but, if you have a power hammer, you can create a shortcut to the basement to make your trip a little quicker.)

Head to the top of the L-shaped basement to find a patch of the brick wall that is a little darker than the rest. Interact with the wall to break open a hidden passageway that leads to an area of the grounds just beside the four braziers. Now at the start of a new day, you can go down the stairs and enter the basement right away!

Step 6: Unlocking Room 46

To unlock Room 46 in Blue Prince, you need to navigate the Reservoir area after accessing the Basement through the Foundation. Inside the Reservoir, locate the gear platform and use the lever to rotate it four times, creating a new walkway to your left. Follow this path, crossing the railroad and activating another lever five times to open a series of doors marked with the moon symbol. Then, return to the gear platform, turn the lever five more times to reveal a secret path behind what seems like a dead end. Inside, pull the lever to unlock Room 46 in the Antechamber. Finally, backtrack to the Antechamber and enter Room 46 to complete the main quest, though many mysteries remain to explore in the estate.

Now that you’ve arrived at the Reservoir, you’ll notice a lake to your left, a railroad track ahead of you, and a doorway on your right.

Our main focus in the Reservoir will be just through the doorway on the right, which will reveal a gear platform and a lever that can rotate the platform. Turn the lever four times, which won’t create a walkway straight ahead of you, but rather to your left.

Exit the doorway and follow the railroad track to find the minecart you repositioned in Step 1 and a path to the right. Continue down the path and cross the newly created gear pathway to the next lever. Turn this lever five times and continue along the path and through a doorway to find eight locked doors, a familiar moon symbol, and a lever unlocking Room 46.

Return to the gear platform, but don’t immediately walk across. Turn the lever five times and walk across to what seems like a dead end, but in actuality, is a secret path. Open the door inside to end up back on the railroad track path from before.

What secret steps unlock Room 46 in Blue Prince on PC and consoles

To unlock Room 46 in Blue Prince on PC and consoles, follow these secret steps:

1. Enter the Antechamber: First, unlock all four Antechamber gates (west, south, east, and north) by solving puzzles scattered throughout Mount Holly Estate. The Antechamber is located at the top-center of the mansion map and contains the Basement Key.

2. Use the Basement Key to access the Underground: With the Basement Key, unlock doors leading to the Underground area beneath the estate. You must unlock at least two underground entrances such as the Fountain Basement Door, Precipice Shortcut, or Tomb Secret Path to reach the Inner Sanctum.

3. Navigate the Underground Reservoir and Cog Wheel Room: Inside the Underground, move the minecart blocking the path to access the Cog Wheel Room. Manipulate the cog wheel to open a hidden room and unlock a shortcut door. Use this shortcut to reach the bridge control and position the bridge for easy access across the Underground.

4. Reach the Inner Sanctum and pull the lever: The Inner Sanctum houses the lever that opens the north door of the Antechamber, revealing Room 46. Pulling this lever permanently unlocks Room 46 for the rest of your playthrough.

5. Return to the Antechamber and enter Room 46: After activating the lever, go back to the Antechamber and enter through the now unlocked north door to access Room 46 and complete the main quest.

This process requires careful exploration, puzzle-solving, and managing your steps efficiently to reach the lever and unlock Room 46. Once unlocked, Room 46 is permanently accessible for future runs.

What is the significance of the Underground Lever in unlocking Room 46

The Underground Lever in Blue Prince is crucial because pulling it permanently unlocks the north door of the Antechamber, granting access to Room 46. This lever is located in the Inner Sanctum, a hidden area deep within the Underground beneath the estate. To reach it, players must navigate complex puzzles including moving a minecart to access the Cog Wheel Room, manipulating the cog wheel to open shortcut doors, and positioning a bridge to reach the Inner Sanctum. Activating this lever is the final step required to open Room 46, making it a key objective in the game’s progression. Once pulled, the door to Room 46 remains unlocked for all future runs, allowing players to enter this pivotal room and advance the story.