Blue Prince is a fantastic roguelike puzzle adventure that was eight years in the making, and I’ve sunk more than 120 hours into the game. As well as my review —where I compared it to Cyan Worlds’ Riven — I’ve published over 50 Blue Prince video guides on the Postmode YouTube channel.
In this article, I’m going to create a hub for all of Postmode’s Blue Prince guides, so you can get some help with tackling the trickier puzzles in the game. This will be an evolving document, and I’ll continue to add more video guides as I produce them. So if you can’t find a specific puzzle or solution here, I’d suggest checking the channel. Sound off in the comments if there are any particular guides you’d like to see, and thank you for reading Postmode!
Postmode is an independent games media outlet. Please consider supporting the site on Patreon or tipping us via ko-fi!
How to unlock the Blackbridge Grotto Admin terminal
The video guide outlines how to find the admin keys for Anne Babbage, Kimberley Thompson and Randolph Moore. There are more Admin Keys to find in Blue Prince but this is part of a separate puzzle, and will be covered in a different video guide found further down this page.
Early Admin Keys in Blue Prince
BabbA – Anne Babbage
ThomK – Kimberley Thompson
MoorR – Randolph Moore
RuotH – Key Expired
RevaD – Key Expired
How to get the Paper Crown in the Closed Exhibit
The Found Floorplan for the Closed Exhibit is in the Study safe, and we have a separate guide to unlocking that which you should tackle first before you try and steal the Paper Crown.
All Microchip locations and how to unlock the Throne Room
Finding the microchips in Blue Prince involves purchasing A New Clue from the Bookshop, a floorpan that can only attach to the Library floorpan. From there, you need to check the book out and scour its pages for clues.
Blue Prince Corner Case Microchip Clues
Patio – Buried
Nook – Beside
Office – West
Pantry – Bridge
All Antechamber Levers in the Secret Garden
As well as the lever that you can reveal by messing with the weathervane wheels, there’s a breakable wall in the Secret Garden that you can knock through with the Power Hammer to access a hidden Antechamber Lever.
Blue Prince Power Hammer Workshop Contraption Recipe
Sledgehammer, Battery Pack and Broken Lever
How to find the Aquarium File Cabinet Key
If you drain the Aquarium with the Pump Room, you can find some dioramas in the former fish habitats that reflect certain rooms in the manor. If you follow the clues outlined in the video above, you’ll acquire a File Cabinet Key, which will lead you towards an Upgrade Disk and an important lore note.
How to find the Laundry Room File Cabinet Key
There’s another File Cabinet Key in the Laundry Room, which allows you to access another cabinet in the Archives.
How to find The Grounds Tunnel File Cabinet Key
The final File Cabinet Key is hidden in The Grounds. Specifically, it’s in the tunnel which is suspiciously filled with crates. You can find out how to remove the crates with our ‘remove tunnel crates’ guide elsewhere on the page.
How to find the Antechamber Lever in the Great Hall
This guide will show you how to interpret the Partioning Plan in the Drafting Studio to divine the layout of the Great Hall on a per-day basis. You can use this information to confidently secure a path to Room 46, without wasting too many keys.
Postmode is an independent games media outlet. Please consider supporting the site on Patreon or tipping us via ko-fi!
How to solve the Clock Tower Sanctum Key puzzle
Once you roll credits in Blue Prince, the next big task will involve securing several Sanctum Keys that are strewn throughout the manor. The Clock Tower puzzle is perhaps the trickiest, asking you to idle in a room until 1:30 PM to reveal a secret passage, and a complicated clockwork puzzle.
Blue Prince Clock Tower Puzzle Memo Rules
EACH OF THESE CLOCKS SHOULD BE SET TO A DIFFERENT TIME (Blue = True)
FIVE OF THESE CLOCKS SHOULD BE SET TO A TIME ENDING ON THE HOUR (Blue = True)
SET THIS CLOCK TO A TIME CONTAINING ALL DIFFERENT NUMBERS (Red = False)
THIS CLOCK’S NEIGHBOURS SHOULD BE SET TO A TIME CONTAINING A 7 (Blue = True)
THIS CLOCK SHOULD NOT BE SET ON THE HOUR – ENDING :00 (Red = False)
NONE OF THE CLOCKS SHOULD BE SET TO TIMES THAT CONTAIN 1, 2, 3 OR 4 (Blue = True)
THIS CLOCK SHOULD BE SET TO A TIME THAT CONTAINS THE SAME THREE NUMBERS OF ANOTHER CLOCK, BUT IN REVERSE (Blue = True)
THE CLOCKS ARE POSITIONED SO THAT THEIR TIMES WILL GO UP IN ASCENDING ORDER (Red, but it’s handwritten = True)
How to solve the Mechanarium Sanctum Key puzzle
If you’re looking for the location of the Mechanarium Found Floorplan, you’ll find it as part of the rotating gear puzzle in the underground which allows you to access the Sealed Passage. The floorpan is hiding in one of the optional nooks you can access by rotating the gear mechanism. The associated Sanctum Key puzzle involves drafting seven Mechanical or ‘Cog’ rooms in the manor, and then placing down a Mechanarium. You can use the Chamber of Mirrors floorpan to allow for duplicate cog rooms to spawn.
Blue Prince Mechanical Rooms
Utility Closet, Boiler Room, Pump Room, Security, Workshop, Laboratory, Electric Eel Aquarium (Upgrade Disk Reward)
How to solve the seventh Sanctum Key puzzle
The seventh Sanctum Key in Blue Prince arrives with a clue: “The seventh is major if you draft it quite late.” It’s tricky to know whether late means late in the day or late in the ranks (as in, the furthest reaches of the grid). To put your best foot forward, Alt-Tab at the start of the day and leave the game running until it’s dark out, and then use Ivory Die to preroll your Music Room drafts until the later parts of the manor grid.
All Workshop Contraption recipes in Blue Prince
One of the trophy challenges in Blue Prince involves crafting each upgraded tool or Contraption, at the Workshop. You need to complete eight trophies to unlock the ability to purchase the Blue Tents upgrade from the Mt Holly Gift Shop, and this is one of the easier challenges to complete.
All Blue Prince Contraption Recipes
Power Hammer: Sledgehammer, Battery Pack, Broken Lever
Jack Hammer: Shovel, Battery Pack, Broken Lever
Burning Glass: Metal Detector, Magnifying Glass
Lucky Purse: Coin Purse, Lucky Rabbit’s Foot
Powered Electromagnet: Compass, Battery Pack
Pick Sound Amplifier: Metal Detector, Lockpick
Dowsing Rod: Compass, Shovel
Detector Shovel: Metal Detector, Shovel
How to find the Planetarium floorplan
You’ll need this floorplan to complete the Mount Holly Directory and receive the Explorer’s Trophy, so this is a handy guide if you’re looking to unlock the Blue Tents upgrade.
How to unlock the safe in the Drafting Studio
The Drafting Studio code has to be the most obscure safe solution in the game, but it makes sense once you solve the Paintings Puzzle!
Blue Prince Drafting Studio Safe Code
1108 (November + the amount of gates on the calendar)
How to unlock all doors with the Radiation Monitor
You might have seen the Radiation Monitor setting on the Shelter terminal and wondered if you could use it. Well, with the help of some experiments, you can juice the radiation levels and use the monitor to open every door in the manor, potentially quite early in the run if you also have the Blackbridge Grotto unlocked!
Postmode is an independent games media outlet. Please consider supporting the site on Patreon or tipping us via ko-fi!
Castling the chess puzzle to reveal The Unknown
Unlocking The Precipice with four blue flames and solving the Blue Prince chess puzzle provides you with a permanent upgrade that can make each run that little bit easier. But did you know that if you pick up the king buff and then swap it with the rook buff (or vice versa), you’ll reveal a hidden chamber?
Blue Prince Four Blue Flame Valve Locations
1 Apple Orchard (Darkroom + Magniying Glass gives you the code)
2 Gemstone Cavern (Utility Box VAC puzzle reward)
3 Hovel (Open the Garage Door, then draft it as your Outer Room)
4 Schoolhouse (Open the Garage Door, then draft it as your Outer Room)
A New Clue Major Minor Suspect Admin Key solution
Further to our Admin Key guide up top, here’s the second part of that puzzle, which you can only solve by purchasing A New Clue in the Bookshop, and then requesting and reading it in the Library. This solves the mystery of the ‘delisted’ keys, and allows you to read a new chunk of revealing Admin Logs.
Blue Prince Suspect List Admin Key Solution
LeeB – Bo Lee
How to find the Weight Room Antechamber Lever
Can’t hurt to have more options when it comes to Antechamber Levers, and one of the easiest to unlock involves the dreaded Weight Room. It’s tricky to pull off, but the results are permanent, and you’ll be able to access the lever on every subsequent run.
Blue Prince Power Hammer Workshop Contraption Recipe
Sledgehammer, Battery Pack and Broken Lever
How to unlock the Satelite Dish permanent upgrade
The signs puzzle in a Blue Prince is one of the most complicated conundrums in the game, and involves a series of hints found in the book A New Clue, which you’ll use to unravel the XYZABC cipher with clues found in the Safehouse. You can find the steps in the video, but if you just want the solutions, check the box below:
Blue Prince A New Clue Puzzle Solutions Only
Route 8 depart, keep left to Tanner Fork, right, Dead End. Record each step on the way = 8, 7, 3, 10, 1, 13
X Y Z A B C = 8 7 3 10 1 13
(Page Count Starts On Title Pages)
Red – Tender Cipher – A Red Prince – Page 10, Word 8 – Turn
Green – Lunar Renamed – Realm and Rune – Page 13, Word 10 – Scorched
Violet – Uncle Awe – A New Clue – Page 1, Word 7 – Sundial
Blue – Draft the Sixes – The Fixed – Stars – Page 3, Word 8 – Base
Use Burning Glass (Magnifying Glass + Metal Detector) to scorch the Sundial base in the Apple Orchard and turn the slats to reveal the Satelite Dish.
How to find and read the Draft Copies in the Tomb
You can unlock a secret passage to the underground in the Tomb by pulling the arms on the statues in the order found in the Chapel. However, when you unlock Sinclair’s will, you can use another order found in the document to unlock a secret cubby behind the Grim Reaper statue, revealing the Draft Copies.
Blue Prince Tomb Statues Puzzle Order (Underground + Draft Copies)
Underground: Rynna (Garden Hoe) > Joya (Chef) > Dauja (Pitchfork) > Veia (Chimney Sweep) > Mila (Broom) > Lydia (Riding Crop) > Orinda (Scepter)
Draft Copies: Orinda (Scepter) > Lydia (Riding Crop) > Rynna (Garden Hoe) > Joya (Chef) > Dauja (Pitchfork) > Veia (Chimney Sweep) > Mila (Broom) > Draxus (Grim Reaper)
How to watch cutscenes and surveillance footage
There’s a note you can find in the Safehouse depicting the layout of screens in the Security room, and a similar note in the Attic. Taken together, you can use them to figure out a new password for the Security terminal that allows you to rewatch cutscenes and check out some secret security footage that is important to the lore of Blue Prince.
Blue Prince Home Security Surveillance Terminal Password
SWANSONGHSS
How to axe the gem cost of rooms with the Armory
If you complete the chess puzzle and pick the Knight buff, you’ll add the Armory floorplan to your drafting pool. Inside, you can sometimes purchase the axe, which can be used a total of three times to completely remove the gem cost of a specified room in your Room Directory.
Postmode is an independent games media outlet. Please consider supporting the site on Patreon or tipping us via ko-fi!
How to melt the Freezer with the Furnace
If you draft the Freezer near to the Furnace, you can melt the valuables inside to receive some extra currency as well as an upgrade disk and some lore notes. You can also use the Burning Glass contraption to achieve the same end, or the Torch from the Armory.
How to use experiments to remove the tunnel crates
There’s a tunnel full of crates in The Grounds, and you’ll need to unlock the Satelite Dish and then wield the power of experiment triggers to slowly but surely remove every obstacle in the tunnel. This will lead you on to a deeper puzzle (The Blue Door) and reveal a File Cabinet Key.
How to find the Lost and Found Buried Floorplan
Like the Planetarium, you’ll need to find the Lost & Found floorplan to complete the Mt Holly Directory and unlock the Explorer’s Trophy. Here’s where it’s hiding!
All Classroom Final Exam answers
If you draft nine Classrooms in a single run you can take the Final Exam, a punishing test of knowledge that rewards the player with an all-important Diploma Trophy. You’ll need to unlock an extra Classroom in the Drafting Studio, and then draft the Schoolhouse as your Outer Room to populate the pool with Classrooms before you can achieve this feat.
How to unlock the Laundry Room Specialty Services
A lesser-known secret in Blue Prince involves powering the Laundry Room with the Boiler Room. In doing so, you’ll access a trio of new currency swap operations in the Laundry Room, including one that allows you to permanently upgrade your allowance.
How to unlock the sequence of doors in the tunnel
Once you remove the crates from the tunnel, you’ll find a veritable gauntlet of doors waiting for you that lead you to another locked blue door. To get past this sequence, you’ll need a series of items from the manor. Thankfully, some of the doors stay open permanently!
Blue Prince tunnel door sequence items and contraptions
1 x Normal Key > 1 x Basement Key > 1 x Keycard > 1 x Power Hammer Contraption (Sledge Hammer, Battery & Broken Lever in the Workshop) > 1 x Burning Torch (Magnifying Glass + Metal Detector) > 1 x Active Red Light in Boiler Room > 3 x Microchips
How to get the Cursed Effigy and unlock Curse Mode
The Cursed Effigy is the first of three items you need to ascend the Throne Room in Blue Prince. Once you pick it up, however, you’ll have your steps reduced to 13 and suffer a series of consequence. Here’s how to unlock this item permanently by purchasing The Curse of Black Bridge, and then smashing the Cursed Coffers in the Shrine to reveal its nefarious power.
Postmode is an independent games media outlet. Please consider supporting the site on Patreon or tipping us via ko-fi!
How to draft the Garage as your Outer Room
If you pay 13 or 30 coins at the Shrine, you can unlock Blessing of the Monk. With this buff, you can call it a day in a room in the manor, and the next day, you’ll be able to draft that room as your Outer Room. When used in tandem with the Garage, you can use the power box in the manor to activate the garage door and open it to find a secret Throne Room clue.
Blue Prince Garage Outer Room Throne Room Clue
Steady is the Scepter, Deadly is the Stone, Heavy is the Crown, Ready is the Throne
You need to bring the Royal Scepter, Cursed Effigy and Crown of the Blueprints to the Throne Room in a single run.
How to remove The Foundation and move it elsewhere
If you hate where The Foundation is situated in Mt Holly, you can use Blessing of the Monk to draft it as your Outer Room, and then use Repellent to remove it from the Drafting Pool, which forces it to respawn in a different location.
How to get lots of free keys in Blue Prince
Another lesser-known interaction in Blue Prince occurs if you bring the Electromagnet to the Locksmith. You can craft the Electromagnet by combining the Compass and the Battery Pack in the Workshop. If you enter a room with metal objects, the Electromagnet will hoover them into your inventory. So what happens if you bring that contraption to the Locksmith…?
How to buy Showroom items for the Trophy of Wealth
In the early game of Blue Prince, money is always an issue, but this gets much easier later down the line as you find more Allowance Tokens. One of the trophies, of which you need eight to acquire the Blue Tents upgrade, is The Trophy of Wealth. To acquire it, you’ll need to purchase every item in the Showroom during a single run, and even then, you’ll also have to purchase the trophy itself, which appears when the Showroom inventory is clear. The video illustrates some tips for building wealth in Blue Prince, and will give you an idea of the coinage you’ll need to complete this task in a single run.
How to upgrade the Planetarium with the Telescope
We showed you how to find the Planetarium, but did you know that you can bring the Telescope to the Planetarium and inspect the orrery to unlock a permanent upgrade for the room? You can do this on subsequent days to fill the room with valuable resources.
Blue Prince Planetarium Telescope Upgrades
Locked Chest > Apple > Ivory Dice > Dirt Pile > Prism Key
How to make the Billiards Room darts puzzle easy
You can use an Upgrade Disk on the Billiards Room to unlock the Speakeasy, which ensures that every math problem only involves Basic Addition, instead of all the typical operations and square root shenanigans.
How to draft the Antechamber as your Outer Room
If you pay 13 or 30 coins at the Shrine, you can unlock Blessing of the Monk. With this buff, you can call it a day in a room in the manor, and the next day, you’ll be able to draft that room as your Outer Room. When used in tandem with the Antechamber, you can use the Antechamber Levers in the manor to open up the Antechamber and reveal a secret room with a hidden Throne Room clue.
Blue Prince Antechamber Outer Room Throne Room Clue
Steady is the Scepter, Deadly is the Stone, Heavy is the Crown, Ready is the Throne
You need to bring the Royal Scepter, Cursed Effigy and Crown of the Blueprints to the Throne Room in a single run.
How to find the hidden West Path Antechamber lever
If you draft the Garage ahead of the Secret Garden on the west wing of Mount Holly, you can encounter a secret interaction that allows you to use the West Path to pull a hidden Antechamber lever in The Grounds. Of course, you can normally access this lever by smashing a wall in the Secret Garden with the Power Hammer, but this is a fun secret that allows you to speedrun the levers if necessary.
How to drain the reservoir and access the Safehouse
One of the trickiest parts of Blue Prince is using the Pump Room to drain the Reservoir and then embarking with the rowboat. You can set the water level to 13 bars (Dock Level), 6 bars (Entry Level) or drain it entirely, and this will afford you access to secret areas, puzzle clues and treasure chests. Our video illustrates how to position and dock the boat in the reservoir so that you can travel through the Underground and access the Safehouse, an important, lore-rich location with a very important series of puzzle clues.
What happens if Room 46 is your Outer Room?
If you pay 13 or 30 coins at the Shrine, you can unlock Blessing of the Monk. With this buff, you can call it a day in a room in the manor, and the next day, you’ll be able to draft that room as your Outer Room. If you call it a day in Room 46, you’ll notice a missing crown and a hidden deed…
How to draft the Entrance Hall as your Outer Room
If you pay 13 or 30 coins at the Shrine, you can receive the Blessing of the Monk. With this buff, you can call it a day in a room in the manor, and the next day, you’ll be able to draft that room as your Outer Room. If you call it a day in the Entrance Hall, you’ll notice that the breakable urns also appear in the Outer Room, and you can smash them with a Sledge Hammer for a secret item.
Postmode is an independent games media outlet. Please consider supporting the site on Patreon or tipping us via ko-fi!
Mining the Gemstone Cavern with the Jackhammer
Did you know that you can mine the gems in the Gemstone Cavern with the Jackhammer? If you combine the Shovel with the Battery Pack and the Broken Lever in the Workshop, you’ll receive the Jackhammer. Take it to the cave and mine the gems to receive… extra gems, but you’ll constantly risk the stability of the cave, and potentially usher in a collapse.
How to solve the CASTLE Cipher and translate Erajan
There’s a breakable wall in The Precipice chess puzzle chamber that reveals a unique cipher. To solve it, you need to find clues from around the manor that fit the arrangement of letters. With that part wrapped up, you’ll then need to translate some Erajan to unravel what the solution actually means. The video will guide you through the complicated steps, but you can also click the box below to reveal the solution.
Blue Prince Castle Cipher Solution and Erajan Translation
CIX ADD SIX TOR LOR ETT
CIX is Roman Numerals for 109.
TOR LOR ETT translates to Counter-Clockwise Word East in Erajan
The final solution is 109 add six, then counter-clockwise to the word East
You apply this solution to the Key of Aries clock puzzle in The Unknown chamber.
