The first diagonal door appears in the far left corner and contains a West Antechamber Lever.
Mechanarium
Jump to navigation
Jump to search
The MECHANARIUM has one door for each room in your house.
Spoilers Ahead
This page contains spoilers for a Found Floorplan. View at your own discretion.
Mechanarium
Stats
Effect
The MECHANARIUM has one door for each room in your house.Gem Cost
None
Type
Rarity
••• Unusual
An iron vaulted mechanical chamber affixed with motorized panels that can reveal up to 8 different doors depending on the parameters at the time of creation.
The Mechanarium is a room in Blue Prince.
Drafting
The Mechanarium is permanently added to the draft pool after finding the floorplan on the Estate.
The Mechanarium can only be drafted in one of the center 21 tiles of the house, even if it would not have enough open doors to lead past the edge of the estate. It is also unaffected by the Southern Cross.
Effect
When the Mechanarium is drafted, it contains one doorway per Mechanical room in the estate, including the Mechanarium itself. The first door is always the one that the Mechanarium is drafted from, meaning that it is effectively a Dead End without additional Mechanical Rooms.
The next doors that spawn are forward, left and right drafting doors that lead into open space. If a Mechanarium doorway would lead in an existing room, its behavior changes depending on whether that room has a wall or a door at that doorway.
- If the room has a door at the same position, the Mechanarium doorway spawns and the door opens like normal.
- If that room has no door at that position, so that doorways leading to that room would ordinarily be boarded up, then the Mechanarium skips that doorway and tries again at the next position.
The number and orientation of the doors in the Mechanarium are set in stone the moment it is drafted. Drafting more Mechanical Rooms after the Mechanarium has been drafted will not cause more doors in the Mechanarium to spawn.
Spoilers Within
This section contains spoilers for further doors.
Click to view
If all valid drafting doors have spawned but there are still more Mechanical rooms unaccounted for, then up to four diagonal doors in the Mechanarium will spawn. If all four diagonal doors spawn and there are still more Mechanical Rooms, nothing happens.
The four diagonal doors lead to closed compartments with secrets and/or items rather than than leading to another room. The doors can be opened in any order; the ordering refers to which diagonal doors will spawn. (The fourth door only spawns if you have four extra rooms.)
The second diagonal door appears in the far right corner and contains the first item on this list that is available to spawn:
The third diagonal door appears in the near left corner and contains the first item on this list that is available to spawn:
The Upgrade Disk becomes unavailable if the disk from this location was previously used.The fourth diagonal door appears in the near right corner and contains a Sanctum Key, or 8
if the Sanctum Key has already been used or is otherwise unavailable.
Interactions
- The Mechanarium never counts as a Dead End, even if it has no doors other than the one it was drafted from.
[Outer Room: Shrine] Despite the wording of this room's effect, Mechanical Rooms drafted as an Outer Room with the Blessing of the Monk or Berry Picker also count towards the Mechanarium's Mechanical Room count.
Spoilers Within
This section contains spoilers for a blessing.
Click to view
When the Mechanarium is drafted on the Grounds using the Blessing of the Monk, the four side doors still open before diagonal doors open, requiring 4 other mechanical rooms to open the first diagonal door.
As a Mechanical Room
- Holding the Gear Wrench allows the rarity of the Mechanarium to be permanently adjusted when drafting it.
- [Outer Room: Shrine] While the Blessing of the Tinkerer from the Shrine is active, drafting the Mechanarium will trigger the current experiment, if there is one.
- [Contraption Spoiler: Powered Electromagnet] Having the Powered Electromagnet makes drawing the Mechanarium more likely.
Additional information
Spoilers Within
This section contains spoilers for post-Room 46 puzzles.
Click to view
The Mechanarium is indirectly referenced in a note in Room 46 containing hints for where to find Sanctum Keys, specifically the line "And the last key is waiting, behind the last door of eight." The Mechanarium has 8 doors if drafted such that none of the doors are blocked, and the key is found behind the last one.
Since the game normally only has 7 mechanical rooms in the draft pool (including additions), opening the last door requires doing one of:
- Drafting the room such that one or more side door is blocked
[Upgrade Spoiler: Aquarium] Taking the Electric Eel Aquarium upgrade- [Chamber of Mirrors secret] Drafting a duplicate Workshop using a duplicate from the upper floor of the Chamber of Mirrors
- Drafting a duplicate Pump Room using the Blessing of the Monk