Skip to main content
A door with animal symbols surrounding it.

How to solve the Arithmancy door puzzle in Hogwarts Legacy

You will need to use your wits, not magic spells, to overcome this obstacle. That, or simply follow this guide to open the Arithmancy door in Hogwarts Legacy.
An Elden Ring player sits on their horse and looks out at a castle ahead.

Elden Ring: How to find and use Rune Arcs

Rune Arcs are a rebranded mechanic from the Souls series that players need to know about. Here's how to use Rune Arcs in Elden Ring.
how to pre order elden ring logo

How to use Great Runes in Elden Ring

If you managed to get your hands on a Great Rune and don't know where or how to use it, here's a full breakdown of what steps you need to take in Elden Ring.
Tizoc pointing his finger during his intro in Fatal Fury City of the Wolves.

Fatal Fury: City of the Wolves gives Street Fighter 6 a run for its money

Developer SNK is reviving its Fatal Fury series with a very promising new entry that innovates with its REV and SPG systems.
Three soldiers about to attack in a castle.

How to summon spirits in Elden Ring

Just finding the spirit item itself won't let you summon them. Because the game isn't going to tell you outright, here's how to summon spirits in Elden Ring.
An AI game demo produced by Nvidia.

Nvidia’s AI game demo puts endless dialogue trees everywhere

Nvidia's impressive AI-driven game characters were showed up in a playable demo -- but it just amounts to more endless dialogue trees.
final fantasy vii rebirth ending analysis 7 tifa aerith cloud

When will Final Fantasy 7 Rebirth be on PC?

Final Fantasy 7 Rebirth is out as a PlayStation 5 exclusive, but it is expected to come to PC just like Remake. This is how long you can expect to wait for it.
Pokemon runing in a neon city in Pokémon Legends: Z-A.

All confirmed Pokemon in Pokemon Legends: Z-A

Get ready to fill out your Pokedex again when Pokemon Legends: Z-A arrives. We don't know the full list yet, but here are all the Pokemon confirmed to be there.
Ichiban and Sujimon celebrating.

Steam Spring Sale: best deals, how long is the sale, and more

Get your wallets ready because its time for another Steam sale! The Steam Spring sale cuts the price on hundreds of games, but you need to act fast or miss out.
Someone plays a game using Irdeto's TraceMark techonlogy.

Denuvo maker Irdeto targets the video game industry’s leak problem with new tech

The company behind Denuvo is introducing a new technology called TraceMark that will combat leaks that come from prelaunch game playtests.
The LG UltraGear monitor on a table.

This LG 34-inch QHD gaming monitor is discounted from $1,000 to $529

The 34-inch LG UltraGear QHD curved gaming monitor is down to nearly half-price from Walmart, as a $471 discount slashes its price to a more affordable $529.
PlayStation VR2 headset on blue background.

PlayStation VR2 production reportedly paused by Sony

A new report claims that Sony is pausing production on new units of its PlayStation VR2 headset.
The Razer Kishi V2 Pro Xbox Edition mobile gaming controller on a black background.

Razer’s Kishi V2 Pro game controller for Android is 47% off

The Razer Kishi V2 Pro Xbox Edition mobile gaming controller, which is compatible with all of the popular Android smartphones, is only $80 from Amazon's Woot.
Steam library.

How to change your Steam username

Have you outgrown your Steam username? If it's time for a change, you can switch up your username easily in just a few clicks on both desktop and mobile.
The Playstation 5 system standing upright.

Quick! This PS5 bundle just got an unprecedented price cut

The PlayStation 5 Slim Marvel's Spider-Man 2 bundle, which comes with a digital copy of one of the best exclusives for the console, is down to $449 on Amazon.
The name King of Red Lions floats above a red, customized ship in Sea of Thieves.

How to buy and customize ships in Sea of Thieves

You can finally make your ship in Sea of Thieves truly your own with the arrival of Captaincy. This guide will show you how to buy and customize your ship.
Apple Arcade characters stand on a chess board.

The method to Apple Arcade’s madness? ‘Bring us an incredible game’

With Apple Arcade's five-year anniversary approaching, Apple sheds some light on how its mobile gaming service continues to thrive.
AI-generated NPCs sit at a bar.

As the use of AI rises in games, SAG-AFTRA is fighting to make the tech ethical

As this year's GDC brings more AI gaming projects, SAG-AFTRA explains why its fighting for an ethical use of the tech.
A LinkedIn mobile app store page displayed on a mobile device.

LinkedIn adding word games so you can procrastinate at work

LinkedIn may exist to help professionals look for new job opportunities and network with others, but it could soon become the place for a bit of down time, too.
Playstation 5 with a controller.

Does PlayStation 5 have a web browser?

While the PlayStation 5 has made vast improvements in nearly every way, you may find that there's one thing that it has left in the past – browsing the net.
Key art for the Star Wars: Battlefront Classic Collection.

You don’t need the messy Star Wars: Battlefront Classic Collection to enjoy these classics

The Star Wars: Battlefront Classic Collection is a mess at launch, but you don't need to buy it right now to experience the classic games it features.
Nintendo Switch

How to charge a Nintendo Switch Joy-Con and Pro Controller

Want to know how to charge a Nintendo Switch controller? This article will show you a variety of different ways to charge your Joy-Cons.
Palafin Pokedex entry cover.

How to evolve Finizen into Palafin in Pokémon Scarlet and Violet

Trying to evolve Finizen into Palafin in Pokémon Scaret and Violet? The process is a bit tricky. Here's everything you need to know about this quirky evoltuion.
Digital Trends on Nintendo Switch

How to use the hidden Nintendo Switch browser

The Nintendo Switch is a gaming-first console. It wasn't designed to surf the internet. Just for fun, here's how to use the hidden Nintendo Switch browser.
A hacker uses a computer in Cyberpunk 2077.

Cyberpunk 2077 cheat codes: money, weapons, and more

From getting a cheat engine to inputting cheats and what cheat codes are best, here's how to cheat your way to glory in Cyberpunk 2077.
Overwatch 2 running on the LG OLED 27 gaming monitor.

10 best gaming monitors of 2024: tested and reviewed

After reviewing dozens of the gaming displays, here are the best gaming monitors to spend your money on in 2024.
The Playstation 5 system standing upright.

Over 380 PS5 games are discounted at Amazon — from $10

Amazon's PS5 game sale is offering discounts on over 380 titles across all genres. Don't miss this chance at savings in building your PlayStation 5 library.
logitech g920 driving force racing wheel deal amazon march 2024

This Logitech racing wheel and pedal bundle for Xbox, PC is 23% off

Want to lose yourself in racing? Check out this amazing Logitech G920 Driving Force Racing Wheel bundle deal at Amazon right now.
The Samsung Odyssey Neo G9 57-inch mini-LED gaming monitor placed on a desk.

This monstrous Samsung 57-inch 4K gaming monitor is $700 off

Samsung promises the best video game experience with the 57-inch Samsung Odyssey Neo G9 dual 4K curved gaming monitor for $1,800, $700 off its original price.
The LG UltraGear 32GN600-B 32-inch gaming monitor on green background.

This LG 32-inch QHD gaming monitor is a bargain at $250

The 32-inch LG UltraGear QHD gaming monitor, featuring a 165Hz refresh rate and a 1ms response time, is down to an affordable $250 after LG's $150 discount.
Playstation 5 with a controller.

How to gameshare on the PS5

The PS5 lets you share your games with friends and family via Console Sharing, but only if you know what you're doing. Here's how to set up the feature.
A demiguise statue glowing.

All Demiguise Statue locations in Hogwarts Legacy

If you're on the hunt for the Demiguise Statues in Hogwarts Legacy, let this guide be your Revelio spell on their locations. There's 30 in total to track down.
A Niffler standing in some grass.

How to find Rococo the Niffler in Hogwarts Legacy

This quest features many tricky puzzles to trip you up. To make sure this little Niffler makes it back home safe, here's how to find Rococo in Hogwarts Legacy.
Asus ROG Ally and Steam Deck sitting next to each other.

Asus ROG Ally vs. Steam Deck: here’s how they compare

Both versions of Asus' ROG Ally are here now, so how do they compare to the Steam Deck? We put all three devices head-to-head.
Section Editor, Gaming

Once you've been sorted into your house in Hogwarts Legacy and are free to roam around the campus, you might stumble upon some mysterious doors with various symbols surrounding it and strange numbers on the front. Naturally, you will be drawn to open it, only to find it locked. These aren't doors you can open with your normal lockpicking spells, no matter how high you level them up. Instead, you will need to use your wits to overcome this obstacle. That, or simply follow this guide to open the Arithmancy doors in Hogwarts Legacy.

Difficulty

Moderate

Duration

15 minutes

What You Need

  • Complete the opening mission

(function() { const el = document.getElementById('h-66056b5d10692'); const list = el.querySelector('.b-meta-table__list'); const listModifier = 'b-meta-table__list--long'; const moreItems = (el.querySelectorAll('.b-meta-table__list-item')).length - 4; const btn = el.querySelector('.b-meta-table__button'); const additionalBtnClass = 'b-meta-table__button--active'; if (btn) { btn.addEventListener('click', function(e) { if (list.classList.contains(listModifier)) { list.classList.remove(listModifier); btn.classList.add(additionalBtnClass); btn.innerHTML = JSON.parse(decodeURIComponent('%22Show%20less%22')); } else { btn.innerHTML = moreItems === 1 ? 'Show 1 more item' : 'Show ' + moreItems + ' more items'; btn.classList.remove(additionalBtnClass); list.classList.add(listModifier); } }); } })();
A door with animal symbols surrounding it.
Image used with permission by copyright holder

How to open Arithmancy doors

Arithmancy doors are essentially math problems in disguise. You're supposed to determine which animal around the frame corresponds to what number and then determine what numbers fit in the ? spots on the two triangles on the door's face. Put simply, to solve these puzzles you need to make the sum of the values of the three numbers and animals around the triangle equal to the big number inside the triangle. If you aren't sure how to do that, or the value of the arithmancy door animals, follow these steps:

Step 1: Interact with the door to see the interior triangles.

Step 2: Add the two known numbers of each triangle together. If you see an animal and not a number, check this cipher to convert it into a number.

A paper with animals and numbers listed.
Image used with permission by copyright holder

Step 3: Subtract the number inside the triangle from the sum you just got.

Step 4: Take those two new numbers and find which animal they correspond to.

Step 5: Locate the ? and ?? symbols on the walls nearby.

A student looking at a ? tile.
Image used with permission by copyright holder

Step 6: Interact with each of them until they show the correct animal.

Step 7: Once both have the correct animal showing, the door will open and you can claim the loot inside.