What is the key for Castle of Secrets on PC?

It is a key that will allow you to download the game Castle of Secrets on your PC from official download platforms.

What's the best price for buying the key of Castle of Secrets for PC?

As of 05/12/2025, in United States, the best price we have found in our selection of online stores that include the key for Castle of Secrets on PC is €9.75.

Which digital format of Castle of Secrets should I buy for PC? An Account or a Steam Key ?

The account format is cheaper but has a more complicated activation process compared to a simple key or code. It may also cause access issues in the future, which is why we only recommend it to users who are familiar with this format or have used it before. If you’re looking for a simpler and safer activation process and don’t mind paying a bit more, we recommend buying the Steam Key format.

If I buy the account format of Castle of Secrets, will the store provide all the activation instructions?

Yes, stores that sell this format usually guide users through the entire activation process, and if any issues arise, they offer customer support services. And if they don’t help, don’t worry—we’re here to assist you too.

Why is the Steam Key of Castle of Secrets safer than the account format?

The Steam Key format is what we always recommend due to its ease of use and higher security compared to any other format. You just need to redeem the key in your account to download Castle of Secrets to your game library. The account format requires more complicated steps and is more prone to errors during activation.

What issues can arise when activating a Steam Key of Castle of Secrets?

The only issue we’ve encountered in 13 years is receiving a duplicate key that doesn’t work. In that case, simply contact the store where you bought Castle of Secrets, and they will provide a new key. You can also contact us, and we’ll help you out.

How long will I have to wait to receive the Steam Key of Castle of Secrets after purchasing it from a store?

Delivery times vary by store. For example, in the case of Instatgaming, Eneba, G2a, or Kinguin, delivery is usually instant or takes just a few minutes. These stores rarely delay game deliveries.Other stores may take 30–40 minutes depending on game availability. On release days, delivery times may be slightly longer.If you notice an unusually long delay, contact the store or us, and we’ll resolve it as quickly as possible.

What guarantee do I have that the listed stores are reliable?

At Gocdkeys, we only list the most well-known stores that have passed our quality checks. One of the most important factors is good customer support, and all listed stores offer it.There have been occasions when those services were overwhelmed, which is why we also offer 24/7 customer support to help resolve any issues or questions.In any case, we always offer a 100% guarantee, so you won’t have any problems, and if you do, we’ll resolve them as soon as possible.

Can I return a digital game for PC?

Some digital formats allow returns under certain conditions.

The store does not send my order and does not respond to support. What can I do?

Don't worry, we have the solution. We will handle it ourselves.

The final price is higher than indicated.

Many stores add payment fees, taxes,... in the cart. So be prepared to spend a little more.

I'm desperate: They don't send me the game, the store ignores me. I think I've lost my money.

Calm down, don't panic. Contact us and we will help you resolve it as soon as possible.

Buy Castle of Secrets CD Key for PC

Gallery

Redeem

2500

Best offers for Castle of Secrets Steam Key for PC (December 2025)

The cheapest price is 9.75€ (-100%) at Steam with a rating of 1.8 (3.7k reviews) · Version Steam Key · Region Global · We compare prices at 1 verified stores with 1 active offers · Updated on 05/12/2025 07h 59min. ago

Gift cards

Our recommendation

4.7(739.3k)

View Prices

No code available

View 1 offers from €9.75

Create Alert

Historical prices

Current minimum price

Medium price

Official stores are authorized distributors, and while their prices may be higher than Key stores, their reliability is 100%.

“Choose it if you don’t mind the price difference”

Key stores are resellers and marketplaces, which is why they are usually cheaper than official stores. We only show the best ones, so you can rest assured. Plus, we offer our guarantee against any issues.

“Choose it if you’re looking for a great discount”

AI powered by Gocdkeys BETA version

Go to FAQ's

If you want to pay the minimum, the offer from Steam in KEY format is the best option from 9.75€

The official price is unknown, but buying from third parties is usually cheaper.

At Gocdkeys our recommendation is to always buy the KEY format, preferably from Instantgaming due to its reliability. If you prefer the account format, which is cheaper, we recommend buying from Difmark.

Stores (1)

Only official

Offers

Hide accounts (0)

Available regions

Global EU US UK

Price

With Taxes

OOPS!! No key stores available at the moment

1.8 (3.7k)

No code available Copied!

€9.75

Region Global

Product type Steam Key

Delivery Instant

Fees -

Gocdkeys - Transparency and credibility

All store links contain affiliate links that help us keep Gocdkeys running at no extra cost to our users. If you have any questions about our service, you can contact us via our email or through our Discord.

More than 4.5M users in 13 years have trusted us to find the best deals - Trustpilot 4.7/5 ★

More than 90 online stores where we find the best deals for gamers

24/7 support to help you with any issues in your purchases

We track prices every 2 hours and sort by final cost - Last update: 2025-12-05 04:07:08

About Castle of Secrets

The ancient Tranton family curse has forced young Miss Susan to embark on a perilous journey—one that will take her deep into the realm of the dead. Along the way, she will encounter ghostly inhabitants, forge unexpected alliances, face formidable enemies, and, most importantly, uncover the answer to the most haunting question of all: Who is truly responsible for the massacre of her entire family?

One day, in the grand halls of the Tranton family castle, a loving couple welcomed a daughter into the world—her name was Miss Susan.

Her father, Mr. Grinn was a man of remarkable charm and influence, deeply adored by his wife and daughter. But tragedy struck when he met a mysterious and untimely death.

Grief consumed Susan’s mother, Miss Agatha, who found herself lost in sorrow, wandering the castle like a shadow, unable to bear the weight of her loss. Those around her, hoping to bring her solace, arranged for her to remarry. Her new husband, Mr. Austin was a rich and intelligent gentleman. This union brought a small sense of order back into the family.

Yet this fragile peace was nothing more than an illusion.

Like a black cat prowling in the night, misfortune slinked through the halls, leaving whispers of curses and sins in its wake…

Castle of Secrets is a story-line based psychological mystery adventure game, immersing players in a hauntingly beautiful atmospheric 3D environment with intricately hand-drawn 2D characters.

The game cleverly weaves puzzle-solving into the narrative, offering a range of challenges that will test your intelligence and logical thinking. Every puzzle is more than just an obstacle; it is a crucial piece of the mystery, with solutions that directly impact the course of the story.

3D Point-and-Click Exploration – Freedom and interaction are at the heart of the experience. Examine, collect, and manipulate objects, and explore every hidden corner of the castle utilizing a unique interactive scene camera.

Every item you collect may hold the key to a deeper truth – pay close attention, analyze, and combine objects to progress in your quest to uncover the sinister secrets buried within these ancient walls.

Meet 30+ Unpredictable Characters – Every encounter matters. Some residents may help you, others may deceive you, and all of them have their own agendas.

Branching Narrative with Multiple Endings–Your choices shape Miss Susan’s fate.How far will you go to uncover the truth?

Beautiful Hand-Drawn Original Art – Experience a uniquely crafted world where every detail is an original piece of art. From meticulously designed 3D environments to stunning hand-drawn 2D characters, every scene is brought to life with an evocative, atmospheric style that enhances the mystery and immersion of the game.

WHAT WILL YOU FIND IN GOCDKEYS?

You will find a price comparison of the digital version, in Steam Key or Steam Gift format, for PC of the video game Castle of Secrets, to make it easier for our users to find the best prices and offers in the most prominent online stores to make it easier to find the cheapest price or the best deal.

WHAT YOU SHOULD KNOW BEFORE BUYING Castle of Secrets STEAM KEY?

What is the Castle of Secrets STEAM Key?

Relax, it's nothing unusual, in fact it's the most common method of buying pc games!

A Key is a digital code (a set of letters and serial numbers) that you can redeem quickly and easily within the official Steam video game platform in exchange for a digital copy of Castle of Secrets for PC.

What does this product include?

Everything you need to start playing from home in minutes!

It includes the Castle of Secrets video game for PC, although some stores may include special editions with additional content such as a Deluxe or Ultimate edition. Also some stores may sell "Preorder Bonus" which means that version comes with extra content, such as DLC or cosmetics.

Are there regional restrictions for this PC game?

Beware, many of the Steam Gift that stores sell are region locked!

This product can be global or include region restrictions that only allow you to activate it in specific areas of the world such as Europe, USA or UK. Check carefully! We will tell you if there are regional restrictions.

If it is a STEAM Key it does not usually have a regional lock, but STEAM Gift usually do have regional locks.

How will I receive the Castle of Secrets key after I buy it?

In the easiest way you can imagine, directly to your email in minutes!

Your product will be delivered immediately after payment through your email, where you will receive a digital code, also called CD Key, which you can redeem without problems in the official Steam store.

How do I activate the Castle of Secrets Steam Key in my account?

If it's a STEAM Key it's very simple, but a STEAM GIft has a little more complication!

- If you don't already have the Steam video game platform installed on your PC, go to STEAM and click on the "Install Steam" icon in the top right.

- If you already have Steam installed on your PC, log in to your personal account. If you do not have a Steam account, you must register by selecting the "Login" option and then clicking on the "Join Steam" icon.

- Go to the "Games" section in the main MENU.

- Select the option "Activate Product on Steam".

- Follow the instructions on the screen and enter the Castle of Secrets Key that you have previously received in the mail.

- The download will start automatically.

REASONS TO BUY Castle of Secrets FOR PC

Castle of Secrets is a psychological horror adventure game with an immersive and mysterious plot. The game takes place in an artistic 3D world with 2D hand-drawn characters and animations, creating a stunning and unique visual experience.

The player will face a variety of puzzles at different difficulty levels that are intertwined with the story.

In addition, the game features more than 30 unique interactive characters, each with their own personality, providing an interesting and exciting gameplay experience.

The game's original music contributes to the suspenseful and mysterious atmosphere of the game. The player must make crucial decisions that will affect the development of the plot and plot twists.

The game presents a complete inventory with a brief description of the item, and the player must collect and combine items to complete quests. The items you find can be moved in 3D space in any direction, providing a more realistic gameplay experience.

Most common FAQs when buying Castle of Secrets for PC in digital format:

What is the key for Castle of Secrets on PC?

It is a key that will allow you to download the game Castle of Secrets on your PC from official download platforms.
What's the best price for buying the key of Castle of Secrets for PC?

As of 05/12/2025, in United States, the best price we have found in our selection of online stores that include the key for Castle of Secrets on PC is €9.75.
Why is the Steam Key of Castle of Secrets safer than the account format? See more

The Steam Key format is what we always recommend due to its ease of use and higher security compared to any other format. You just need to redeem the key in your account to download Castle of Secrets to your game library. The account format requires more complicated steps and is more prone to errors during activation.
What issues can arise when activating a Steam Key of Castle of Secrets? See more

The only issue we’ve encountered in 13 years is receiving a duplicate key that doesn’t work. In that case, simply contact the store where you bought Castle of Secrets, and they will provide a new key. You can also contact us, and we’ll help you out.
How long will I have to wait to receive the Steam Key of Castle of Secrets after purchasing it from a store? See more

Delivery times vary by store. For example, in the case of Instatgaming, Eneba, G2a, or Kinguin, delivery is usually instant or takes just a few minutes. These stores rarely delay game deliveries.

Other stores may take 30–40 minutes depending on game availability. On release days, delivery times may be slightly longer.

If you notice an unusually long delay, contact the store or us, and we’ll resolve it as quickly as possible.
What guarantee do I have that the listed stores are reliable? See more

At Gocdkeys, we only list the most well-known stores that have passed our quality checks. One of the most important factors is good customer support, and all listed stores offer it.

There have been occasions when those services were overwhelmed, which is why we also offer 24/7 customer support to help resolve any issues or questions.

In any case, we always offer a 100% guarantee, so you won’t have any problems, and if you do, we’ll resolve them as soon as possible.

Need more help? Use our FAQs.

+ 15 Tickets for comment I want more!

What do our users think of Castle of Secrets for PC Digital?

0/5 (0 Comments)

No comments.

To comment, log in or register at Gocdkeys.

Before commenting, verify your account from the link sent to your email.

Rate and comment: your experience matters!

You are registered as:

Rate your stars

0/250 Thank you for your comment, it will be reviewed by our team shortly.

You must type a minimum of 250 characters

Release date	05/19/2023
Users rating	0/5 (0 Comments)
Steam comments	No user reviews No user reviews (0 Comments)
Categories	Adventure
Tags Adventure Indie Singleplayer Story Rich Fantasy Dark Fantasy Exploration Horror Psychological Horror Hand-drawn

Languages

English*, Russian*, French, Italian, Portuguese - Brazil, Simplified Chinese, Korean, Polish, Turkish, Ukrainian, Japanese, Spanish - Spain, German*languages with full audio support