Unlocking the Antechamber Doors in Blue Prince: A Step-by-Step Guide

The primary objective in Blue Prince is to uncover room 46, which hinges on successfully accessing the Antechamber. It’s crucial to understand that simply reaching Rank 9 and having a door leading to the Antechamber does not grant you entry unless the doors are opened beforehand.

Accessing the West Antechamber Door

The west door to the Antechamber stands as the most straightforward to unlock. To operate it, you first need to obtain the Secret Garden Key. This key can be acquired from several different sources: it may reward you for completing the math puzzle in the Billiards Room, be located in the Music Room, or even be purchased from the Locksmith.

Once you possess the key, you can use it on any locked door along the outskirts of the Holly Manor layout, transforming that room into the Secret Garden. This not only facilitates the growth of fruit within the house but also, by aligning all the pointers on the weathervane in one direction, you will unveil a door that leads to the lever necessary for your progress.

Unlocking the East Antechamber Door

To access the eastern lever, head to the Great Hallway. This area requires seven keys to unlock all its doors, and our attempts with a Lockpick Kit here were unsuccessful, complicating the search for the much-needed lever. You might be fortunate enough to discover the lever behind the first door, but be prepared, as you will need to gather seven keys to fully access this room. Utilizing the Foyer can assist you, as it opens every door across all hallways, including those within the Great Hallway.

Opening the South Antechamber Door

Gaining access to the southern Antechamber door poses a greater challenge since it necessitates two key components. First, you must locate the Broken Lever, which is frequently found in the Workshop as well as various green rooms, although its locations can vary. Subsequently, you will need to access the Greenhouse to attach the broken lever and open the door. Keep in mind that the Greenhouse itself is a dead end, so it’s wise to have alternative paths prepared.

Exploring Blue Prince’s Antechamber

Blue Prince Antechamber — Screenshot by Siliconera

Upon entering the Antechamber in Blue Prince, players will discover the Basement Key—the only means available to obtain this essential item. The Basement Key is crucial for unlocking doors in both the Foundation and the Fountain, allowing access to the area below. While the Antechamber doors reset daily, the Basement doors will remain permanently unlocked, enabling further exploration. Additionally, the lever for the north Antechamber door can be found in the basement, which is pivotal for advancing toward your ultimate objective.

If you’re having difficulty locating the north lever, it’s essential to enter the Basement through any two of the three entrances: the Foundation and either the Fountain or the Tomb. Though the Basement Key is not required to enter via the Tomb, be prepared to solve the statue puzzle located in that area.

For more updates about Blue Prince, which officially launched on April 10, 2025, for platforms including PlayStation 5, Xbox Series X|S, and PC via Steam, check out the official site.

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