Complete Guide and Map for Blue Prince’s Full Basement Exploration

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The Basement is a crucial room in Blue Prince that you need to access to reach Room 46. It’s a busy area with various entry points.

Our Blue Prince guide will help you learn how to access the Basement, provide a map of the Basement and Underground, and guide you on what activities to undertake there.

How to Obtain the Basement Key in Blue Prince

To enter the Basement, securing the Basement Key is necessary. Fortunately, obtaining the Basement Key is straightforward: reach the Antechamber.

However, getting to the Antechamber involves a more extended process. You’ll need to locate at least one of the three levers that open the Antechamber doors and plan your path accordingly.

Once the Antechamber is reached, you can collect the Basement Key. This key is essential for accessing the Basement, even if you discover alternative routes later on.

How to Use the Basement Key in Blue Prince

The most direct way to access the Basement is via the Foundation. First, draft the Foundation and adjust the lift to the correct position by revealing a hidden crank behind the wall. Then, take the elevator to a Basement door, which you can unlock with the Basement Key (as explained above).

While exploring, you’ll discover other routes to the Basement, such as through the Cliffside Exit (using a Power Hammer), the Fountain (after being drained), or the Tomb (through a complex route). The Foundation route, however, remains the simplest.

Comprehensive Basement and Underground Map in Blue Prince

The Basement is part of a larger Underground structure in Blue Prince. You can find the complete map in the Reservoir‘s rotating gear room, or view it below:

[Map Image]

This map has nine labeled locations:

1. Foundation elevator: This elevator takes you to the main Basement Door.
2. Concealed Entrance: Accessed by solving the pallet jack puzzle in the Basement.
3. Cliffside Exit: An outdoor route past the Fountain, requiring a Power Hammer.
4. Mine Cart: An obstacle that needs moving by solving the Tomb puzzle.
5. Fountain Entrance: Accessible after draining the Fountain, requiring the Basement Key.
6. Tomb Entrance: Found in an Outer Room, the Tomb requires interaction with statues to unlock routes.
7. Torch Chamber: A puzzle room linked to a larger Sigil puzzle, accessible with specific tools.
8. Rotating Gear: The final puzzle before reaching Room 46.
9. To North Lever: Leading directly to Room 46.

Basement Walkthrough in Blue Prince

The Basement, as a segment of the Underground, offers numerous tasks to complete.

Your main objective is reaching Room 46. To do so, you need to:

1. Solve the Tomb puzzle by arranging statues correctly and moving the Mine Cart.
2. Complete the Basement’s pallet jack puzzle to reach the Concealed Entrance.
3. Solve the Rotating Gear puzzle after clearing the Mine Cart.
4. Finally, arrive in Room 46.

There are other activities you can pursue in the Basement:

• Drain the Reservoir via the Pump Room to access hidden chests.
• Investigate the Torch Chamber and its associated Sigil puzzle.

A final note: The elevator, unlocked by lighting the four braziers, connects to the Precipice, a separate area with its own challenge—the chess puzzle.

For further Blue Prince guides, explore our comprehensive walkthrough on reaching Room 46 or check out our catalog of safe codes.