To reach Room 46 in Blue Prince, enter the Antechamber through a west, east, or south door, take the Basement Key from its central pedestal, and use an Underground route to reach the Inner Sanctum. Pull the central lever there, then return to the Antechamber and go through its now-open north door. This route reveals major puzzles and locations, including the Underground and the Basement Key.
1. Open a side door to the Antechamber
The Antechamber is at Rank 9, and all its doors start locked. You need to open just one of its west, east, or south doors to enter. The north door to Room 46 is opened later from below; it is not an entry route for this first visit. Choose the side-door puzzle that best fits your current keys, items, room draws, and remaining steps. No route is guaranteed in every run.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
|
Blue Prince Day One Edition - PlayStation 5 | $44.80 | Buy on Amazon |
| 2 |
|
Blue Prince - PS5 | $44.80 | Buy on Amazon |
| 3 |
|
Blue Prince - P5 | $49.99 | Buy on Amazon |
| 4 |
|
Metaphor: ReFantazio Launch Edition - PlayStation 5 | $38.89 | Buy on Amazon |
West route: Secret Garden
- Find the Secret Garden Key and use it to draft the Secret Garden at an eligible locked, outer-facing door.
- Solve the wind-vane puzzle by turning both hand cranks until the arrows point west.
- Pull the revealed lever to open the Antechamber’s west door.
The puzzle is also described as turning two valves until the vanes face west. GameSpot’s walkthrough covers this route.
East route: Great Hall
- Reach the Great Hall and find its lever behind one of its locked doors.
- Get through the doors using available keys, a Lockpick, or the Foyer, which unlocks hallway doors.
- Use the Drafting Studio model to locate the lever: its position can vary by day.
- Pull the lever to open the Antechamber’s east door.
South route: Greenhouse
- Find a Broken Lever; it is a random item, with Security and the Spare Room noted as possible locations.
- Attach it to the Greenhouse wall mechanism and pull it to open the Antechamber’s south door.
The Broken Lever is not guaranteed to appear, so consider another route if you cannot find one.
Recommended Free Tools
#1 Best Overall
- DRAFTING YOUR JOURNEY - Upon reaching a closed door in Mt. Holly, you decide what room appears behind it and each decision shapes your path as you navigate through the manor. Every door can reveal new and exciting chambers that contain their own unique challenges and secrets. But be careful how you draft, for each day the manor’s floor plan resets and the rooms you saw today may not be the same rooms you see tomorrow.
- EVERY STEP COUNTS - Your progress each day is shaped by the rooms you select to draft and the tools you find within them. Items in the game can be used in a number of creative ways to fuel your exploration deeper into the house, allowing you to adopt unique strategies to combat the challenges that each day brings.
- A HISTORY IN THE MAKING - As the heir of Mt. Holly, you have been tasked to explore its shifting halls in search of Room 46. Yet as your journey takes you further into the mansion’s depths, you start to discover that there is more lurking under the surface than a missing room. Investigate a past woven with the threads of blackmail, political intrigue, and the mysterious disappearance of a local children’s book author.
- DAY ONE EDITION BONUSES - Pack-in bonuses include 18” x 12” fold-out poster of the magnificent Mt. Holly Manor and a download code for the official game soundtrack.
2. Take the Basement Key
Once inside the Antechamber, take the Basement Key from the central pedestal. The note there reads, “To go up, you must go down.” The north door remains locked; the key is for reaching the Underground, where you can open it. It can unlock Underground access doors, including the Foundation elevator door or the entrance at the bottom of the drained Fountain.
3. Reach the Underground
The Foundation elevator is the route described in the walkthrough. Other entrances, including the Fountain and Tomb, may be available, but have their own prerequisites.
Rank #2
- The physical edition will include a fold-out poster of the magnificent Mt. Holly Manor
- Additionally, all pre-orders will include a download code for the official game soundtrack. This code will be included on a voucher inside the game pack for all D1 orders
- DRAFTING YOUR JOURNEY - Upon reaching a closed door in Mt. Holly, you decide what room appears behind it and each decision shapes your path as you navigate through the manor. Every door can reveal new and exciting chambers that contain their own unique challenges and secrets
- EVERY STEP COUNTS - Your progress each day is shaped by the rooms you select to draft and the tools you find within them. Items in the game can be used in a number of creative ways to fuel your exploration deeper into the house, allowing you to adopt unique strategies to combat the challenges that each day brings
- A HISTORY IN THE MAKING - As the heir of Mt. Holly, you have been tasked to explore its shifting halls in search of Room 46. Yet as your journey takes you further into the mansion’s depths, you start to discover that there is more lurking under the surface than a missing room
- Draft the Foundation.
- Reveal and pull its elevator lever by placing a room next to the Foundation’s back wall.
- Ride the elevator down and use the Basement Key on the locked door.
If you cannot finish the Underground route before the run ends, put the Basement Key in a Coat Check. Doors opened with it in the Underground stay unlocked, according to the walkthrough, but the key itself can be lost when a run ends.
4. Navigate to the Inner Sanctum
From the Foundation, continue to the Reservoir and Rotating Gear area. A minecart blocks the passage between the Reservoir and Rotating Gear; move it from the Reservoir’s south side. The walkthrough says it stays in position permanently. The Foundation provides the north-side approach, while the Fountain or Tomb can provide a south-side approach.
Free tools Windows power users keep installed
One-click scans. No signup required.
Rank #3
- Brand new. UK Import PAL version. Game in English. UK PSN account may be required for any online features.
Connect the Rotating Gear ledges
- At the Rotating Gear, use the controls to connect your current ledge to the one on the right, then cross.
- At the next control panel, rotate the gear five times.
- Use the resulting long-spoke connection to enter the metal-plated Underpass.
- Continue through the Underpass to the Inner Sanctum.
The Inner Sanctum has a central lever and eight other doors. For the initial Room 46 route, you need only the central lever.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.5. Open the north door and enter Room 46
Pull the Inner Sanctum’s central lever to open the Antechamber’s north door. Then return to the Antechamber—by backtracking or on a later run—and enter through the north door. The walkthrough says this door stays unlocked after you pull the Underground lever.
Rank #4
- IGN and GameSpot "Game of the Year" and "Best RPG" from The Game Awards
- ATLUS' newest fantasy JRPG with beautiful anime cutscenes
- Free demo with save-data carry over
- Awaken 40+ "Archetypes," magical powers that lie dormant in your heart
- Innovative battle system that blends strategic turn-based combat and dynamic real-time combat
Plan for more than one run
Draft choices, steps, and resources can prevent you from completing every stage in one attempt. GameSpot notes that desired rooms are not guaranteed and a run may not provide enough steps or resources. Build resources in lower ranks, favor rooms with multiple connections for flexibility, and avoid committing to the Antechamber push before you have a viable side-door lever route. Persistent Underground door unlocks can make later attempts easier.
What Room 46 unlocks
Room 46 is a milestone, not the end of the game’s mysteries. Further rooms and secrets remain, and additional Antechamber lever routes are relevant to later access rather than prerequisites for opening the north door the first time.
Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteQuick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
