-44%

$25.61 $14.46

Steam Key

(EU) – Won't work in US

Instant Delivery

Opus Magnum EU Steam CD Key

Name: Opus Magnum EU Steam CD Key | Keydra
SKU: kinguin-106571
Price: 11.57 GBP
Availability: InStock

Steam Key

(EU) – Won't work in US

Instant Delivery

-44%

$25.61

MSRP is based on publicly available data and estimates.
May not reflect actual retail price. Please verify independently.

$14.46

In Stock – Limited Quantity

Opus Magnum EU Steam CD Key

In Stock – Limited Quantity

$25.61

MSRP is based on publicly available data and estimates.
May not reflect actual retail price. Please verify independently.

$14.46

I felt a bit off at first but i decided i'd give it a try on a small order, worked just fine and got a discount, will be back, thanks!

got my Xbox Game Pass Ultimate xbox acc in about 3 minutes, i got a bit scared bc it said instant but it came eventually so all good!

Clean, fast, cheap, what else could you want? rematch was at 40% off, great game, played with friends, probably will recommend to them

Keydra looked good and promised alot, nothing to lose, same cheap price as comp i took the leap and was pleasantly surpriesd to say the least

amazed at how quickly they refunded my sims 3 key (my fault lol). They handled it without making me feel dumb. Respect.

Description

About Opus Magnum EU Steam CD Key

Hailed as the most promising alchemist of his generation, Anataeus Vaya has just accepted a position as Head Alchemist of House Van Tassen, the oldest and richest of the city’s ancient Houses. But dangers lurk behind the family’s opulent facade, and alchemy alone may not solve every problem. Opus Magnum is the latest open-ended puzzle game from Zachtronics, the creators of SpaceChem, Infinifactory, TIS-100, and SHENZHEN I/O. Master the intricate, physical machinery of the transmutation engine— the alchemical engineer’s most advanced tool— and use it to create vital remedies, precious gemstones, deadly weapons, and more. Design Machines - Design and build machines that carry out alchemical processes using a variety of components including programmable arms, customizable tracks, and more esoteric devices like Van Berlo’s wheel and the Glyph of Animismus. Open-Ended Puzzles - Compete against your friends and the world to build the simplest, fastest, and most compact solutions to the game’s challenges. Export animated GIFs of your elegant designs to show them off. Steam Workshop - Make and share your own puzzles with full Steam Workshop integration and an easy-to-use puzzle editor. Play the top user-submitted puzzles in the prestigious Journal of Alchemical Engineering, curated by Zachtronics! Rich Story - Intrigues and dark plots swirl around the city’s ancient Houses. Alchemists, who hold the power to create almost anything known to science, are highly sought— and highly dangerous. Solitaire Minigame - Alchemical engineering takes focus and concentration. Take a break with Sigmar’s Garden, an original alchemy-based solitaire game. Every game is winnable, but not every game will be won…

System Requirements

Windows

OS: Windows Vista / 7 / 8 / 10

Processor: 2. 0 GHz

Memory: 4 GB RAM

Graphics: 1366 x 768 DirectX: Version 10

Storage: 600 MB available space

Mac

OS: macOS 10. 9+

Processor: 2. 0 GHz

Memory: 4 GB RAM

Graphics: 1366 x 768

Storage: 600 MB available space

Linux

OS: Ubuntu 16. 04+, SteamOS

Processor: 2. 0 GHz

Memory: 4 GB RAM

Graphics: OpenGL 3. 0, 1366 x 768

Storage: 600 MB available space

Activation

Product Activation Guides

This product will be delivered as a Steam Key

1

Launch Steam & Sign In

Open the Steam app and log into your account. If it’s not installed, you can download it here.

2

Access Product Activation

Click on + ADD A GAME at the bottom-left of the Steam window, then choose Activate a Product on Steam... to begin.

3

Proceed to Activation

A new window will appear for product activation. Simply click Next to continue.

4

Accept the Terms

Review the Steam Subscriber Agreement, then click I Agree to move forward.

5

Enter Your Game Code

Type in the Steam product key you received, then click Next to continue.

6

Finish & Locate Your Game

Click Finish to complete the process. You can install the game right away or do it later — it will be available in your Steam Library.

1

Open Product Activation

Make sure you are signed in to your Steam account, then head to Activate a Product on Steam from the + ADD A GAME menu.

2

Enter Your Code

Paste your Steam key into the box provided, tick the I Agree checkbox, and click Continue.

3

Find Your Game

That’s it! The game will be added to your Steam Library, ready for download whenever you choose.

1

Launch Steam & Sign In

Open the Steam app and log into your account. If it’s not installed, you can download it here.

2

Get the Verification Code

Log in to the Email Login URL using the credentials we sent you. Once you are in, copy the Steam verification code and enter it on the Steam client when prompted.

3

Enable Family Sharing

To play the game on your personal Steam account, follow this step-by-step guide: Watch the video tutorial.

4

Important Note

Some Steam games can’t be shared due to technical restrictions — especially those requiring third-party keys, subscriptions, or accounts.

5

You Own This Account

Full access is now yours — feel free to update the personal details. If you’d like to add more games later, let us know and we’ll create a custom offer for you at a discounted rate.

Please Note: Applying any changes to the purchased account, such as adding a payment method or changing the region, may result in the account being banned. In such cases, no refund is applicable.

1

Install Steam & Sign In

If you don’t have Steam installed yet, download it from the official website. Once installed, create a new account or sign in to your existing one.

2

Open the Gift Link

You’ll receive an email with a Steam gift link. Click it to launch Steam — make sure you are logged into the correct account before continuing.

3

Redeem the Gift

After clicking the link, Steam will notify you of a new gift in the top-right corner of the client. Follow the on-screen steps to accept and add the game to your library.

Please Note: We are not responsible for any issues related to the purchase or use of Steam Gift links. You use them at your own risk.

Due to a recent update in Valve’s policy, Steam Gifts for games protected by the VAC system cannot be added to your inventory. They must go directly to your library. Always ensure you are logged into the correct Steam account before redeeming the gift link.

1

Open the Gift Link

You’ll receive a gift link via email or order page. Open it in your web browser to begin the process.

2

Connect Your Steam Profile

Depending on the platform, you’ll either be asked to paste your Steam profile URL or sign in using Steam. This step links the gift to your account.

3

Set the Correct Country

If prompted, choose the same country as your Steam store region. You can check yours under Steam > Account Details.

4

Accept the Bot’s Friend Request

Our automated system will send you a friend request from a gifting bot. Accept it to proceed with delivery.

5

Receive Your Game

Once you are friends, the bot will send the purchased game directly to your Steam account as a gift. Accept it to add it to your library.

Reviews

Customer Reviews

FAQs

Learn more about how Keydra works

Why are your prices so cheap?

We work directly with verified bulk distributors who apply to partner with us. That means no middlemen, no inflated markups, just competitive deals we lock in behind the scenes, so you always get the best possible price.

Are all of your products legit?

Yes, every product sold on Keydra is sourced from trusted suppliers and fully verified before going live. We don’t deal in grey-area reselling or sketchy sources. It’s all real, and it’s all backed by our replacement policy.

How fast will I receive my order?

Most orders are delivered instantly after purchase. Some account-based products may take up to 24 hours for manual processing; but we always aim to get it to you as fast as possible. You’ll see the expected delivery time clearly on each product page.

Is anything sent to my address?

Never. All of our products are digital, that means, whether it's a code, an account, or a subscription, everything is delivered online. No physical shipping, no delays, no postage fees.

How do I redeem/see my order?

After purchase, you'll receive a secure link to view your key or account details. If the product requires manual processing, we’ll send a redemption link as soon as it’s ready. Step-by-step instructions are included whenever needed. (You may always view your order details on your dashboard if you created an account).

What happens if my key or account doesn’t work?

If something’s not working as it should, get in touch with us right away. We’ll review your case quickly and either replace the item or issue a refund, no hassle, no runaround. You’re never left in the dark with Keydra.

You can reach our support team at [email protected] or through our contact page - we’re here to help.

Do you offer refunds or replacements?

We do offer refunds or replacements for faulty products as long as the issue is reported within the valid window. To qualify, the product must not have been redeemed or used improperly. Instant refunds apply to keys that haven't been revealed.

Are your products region locked?

Some are, some aren’t, but we make it crystal clear. You’ll always see the region listed on the product page (e.g. EU). Our system auto-detects your location to help avoid mismatches.

Can I trust Keydra.net?

Absolutely. Keydra was built by long-time merchants who know the space inside-out. We launched with one mission: fair pricing, fast delivery, no B.S. That’s why every order is protected, and every deal is real, no hidden fees.

Do I need to create an account to order?

Nope checkout is guest-friendly. But creating a Keydra account unlocks faster order access, easier refunds, and exclusive deals. Totally up to you. We made Keydra to be as convenient as possible.

Other Details

Region European Union
Genre Indie, Simulation
Publisher Zachtronics
Developer Zachtronics
Age Rating PEGI 12
Languages
- 🇨🇳 Chinese
- 🇬🇧 English
- 🇫🇷 French
- 🇩🇪 German
- 🇯🇵 Japanese
- 🇷🇺 Russian

I felt a bit off at first but i decided i'd give it a try on a small order, worked just fine and got a discount, will be back, thanks!

got my Xbox Game Pass Ultimate xbox acc in about 3 minutes, i got a bit scared bc it said instant but it came eventually so all good!

Clean, fast, cheap, what else could you want? rematch was at 40% off, great game, played with friends, probably will recommend to them

Keydra looked good and promised alot, nothing to lose, same cheap price as comp i took the leap and was pleasantly surpriesd to say the least

amazed at how quickly they refunded my sims 3 key (my fault lol). They handled it without making me feel dumb. Respect.

About Opus Magnum EU Steam CD Key

Windows

OS: Windows Vista / 7 / 8 / 10

Processor: 2. 0 GHz

Memory: 4 GB RAM

Graphics: 1366 x 768 DirectX: Version 10

Storage: 600 MB available space

Mac

OS: macOS 10. 9+

Processor: 2. 0 GHz

Memory: 4 GB RAM

Graphics: 1366 x 768

Storage: 600 MB available space

Linux

OS: Ubuntu 16. 04+, SteamOS

Processor: 2. 0 GHz

Memory: 4 GB RAM

Graphics: OpenGL 3. 0, 1366 x 768

Storage: 600 MB available space

This product will be delivered as a Steam Key

1

Launch Steam & Sign In

Open the Steam app and log into your account. If it’s not installed, you can download it here.

2

Access Product Activation

Click on + ADD A GAME at the bottom-left of the Steam window, then choose Activate a Product on Steam... to begin.

3

Proceed to Activation

A new window will appear for product activation. Simply click Next to continue.

4

Accept the Terms

Review the Steam Subscriber Agreement, then click I Agree to move forward.

5

Enter Your Game Code

Type in the Steam product key you received, then click Next to continue.

6

Finish & Locate Your Game

Click Finish to complete the process. You can install the game right away or do it later — it will be available in your Steam Library.

1

Open Product Activation

Make sure you are signed in to your Steam account, then head to Activate a Product on Steam from the + ADD A GAME menu.

2

Enter Your Code

Paste your Steam key into the box provided, tick the I Agree checkbox, and click Continue.

3

Find Your Game

That’s it! The game will be added to your Steam Library, ready for download whenever you choose.

1

Launch Steam & Sign In

Open the Steam app and log into your account. If it’s not installed, you can download it here.

2

Get the Verification Code

Log in to the Email Login URL using the credentials we sent you. Once you are in, copy the Steam verification code and enter it on the Steam client when prompted.

3

Enable Family Sharing

To play the game on your personal Steam account, follow this step-by-step guide: Watch the video tutorial.

4

Important Note

Some Steam games can’t be shared due to technical restrictions — especially those requiring third-party keys, subscriptions, or accounts.

5

You Own This Account

Full access is now yours — feel free to update the personal details. If you’d like to add more games later, let us know and we’ll create a custom offer for you at a discounted rate.

Please Note: Applying any changes to the purchased account, such as adding a payment method or changing the region, may result in the account being banned. In such cases, no refund is applicable.

1

Install Steam & Sign In

If you don’t have Steam installed yet, download it from the official website. Once installed, create a new account or sign in to your existing one.

2

Open the Gift Link

You’ll receive an email with a Steam gift link. Click it to launch Steam — make sure you are logged into the correct account before continuing.

3

Redeem the Gift

After clicking the link, Steam will notify you of a new gift in the top-right corner of the client. Follow the on-screen steps to accept and add the game to your library.

Please Note: We are not responsible for any issues related to the purchase or use of Steam Gift links. You use them at your own risk.

Due to a recent update in Valve’s policy, Steam Gifts for games protected by the VAC system cannot be added to your inventory. They must go directly to your library. Always ensure you are logged into the correct Steam account before redeeming the gift link.

1

Open the Gift Link

You’ll receive a gift link via email or order page. Open it in your web browser to begin the process.

2

Connect Your Steam Profile

Depending on the platform, you’ll either be asked to paste your Steam profile URL or sign in using Steam. This step links the gift to your account.

3

Set the Correct Country

If prompted, choose the same country as your Steam store region. You can check yours under Steam > Account Details.

4

Accept the Bot’s Friend Request

Our automated system will send you a friend request from a gifting bot. Accept it to proceed with delivery.

5

Receive Your Game

Once you are friends, the bot will send the purchased game directly to your Steam account as a gift. Accept it to add it to your library.

Customer Reviews

Learn more about how Keydra works

Why are your prices so cheap?

We work directly with verified bulk distributors who apply to partner with us. That means no middlemen, no inflated markups, just competitive deals we lock in behind the scenes, so you always get the best possible price.

Are all of your products legit?

Yes, every product sold on Keydra is sourced from trusted suppliers and fully verified before going live. We don’t deal in grey-area reselling or sketchy sources. It’s all real, and it’s all backed by our replacement policy.

How fast will I receive my order?

Most orders are delivered instantly after purchase. Some account-based products may take up to 24 hours for manual processing; but we always aim to get it to you as fast as possible. You’ll see the expected delivery time clearly on each product page.

Is anything sent to my address?

Never. All of our products are digital, that means, whether it's a code, an account, or a subscription, everything is delivered online. No physical shipping, no delays, no postage fees.

How do I redeem/see my order?

After purchase, you'll receive a secure link to view your key or account details. If the product requires manual processing, we’ll send a redemption link as soon as it’s ready. Step-by-step instructions are included whenever needed. (You may always view your order details on your dashboard if you created an account).

What happens if my key or account doesn’t work?

If something’s not working as it should, get in touch with us right away. We’ll review your case quickly and either replace the item or issue a refund, no hassle, no runaround. You’re never left in the dark with Keydra.

You can reach our support team at [email protected] or through our contact page - we’re here to help.

Do you offer refunds or replacements?

We do offer refunds or replacements for faulty products as long as the issue is reported within the valid window. To qualify, the product must not have been redeemed or used improperly. Instant refunds apply to keys that haven't been revealed.

Are your products region locked?

Some are, some aren’t, but we make it crystal clear. You’ll always see the region listed on the product page (e.g. EU). Our system auto-detects your location to help avoid mismatches.

Can I trust Keydra.net?

Absolutely. Keydra was built by long-time merchants who know the space inside-out. We launched with one mission: fair pricing, fast delivery, no B.S. That’s why every order is protected, and every deal is real, no hidden fees.

Do I need to create an account to order?

Nope checkout is guest-friendly. But creating a Keydra account unlocks faster order access, easier refunds, and exclusive deals. Totally up to you. We made Keydra to be as convenient as possible.

Other Details

Region European Union
Genre Indie, Simulation
Publisher Zachtronics
Developer Zachtronics
Age Rating PEGI 12
Languages
- 🇨🇳 Chinese
- 🇬🇧 English
- 🇫🇷 French
- 🇩🇪 German
- 🇯🇵 Japanese
- 🇷🇺 Russian

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Steam Key

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Instant Delivery

Opus Magnum EU Steam CD Key

Steam Key

(EU) – Won't work in US

Instant Delivery

-44%

$14.46

Opus Magnum EU Steam CD Key

$14.46

About Opus Magnum EU Steam CD Key

Windows

Mac

Linux

Product Activation Guides

This product will be delivered as a Steam Key

Customer Reviews

Write a Review

Learn more about how Keydra works

We work directly with verified bulk distributors who apply to partner with us. That means no middlemen, no inflated markups, just competitive deals we lock in behind the scenes, so you always get the best possible price.

Yes, every product sold on Keydra is sourced from trusted suppliers and fully verified before going live. We don’t deal in grey-area reselling or sketchy sources. It’s all real, and it’s all backed by our replacement policy.

Most orders are delivered instantly after purchase. Some account-based products may take up to 24 hours for manual processing; but we always aim to get it to you as fast as possible. You’ll see the expected delivery time clearly on each product page.

Never. All of our products are digital, that means, whether it's a code, an account, or a subscription, everything is delivered online. No physical shipping, no delays, no postage fees.

We do offer refunds or replacements for faulty products as long as the issue is reported within the valid window. To qualify, the product must not have been redeemed or used improperly. Instant refunds apply to keys that haven't been revealed.

Some are, some aren’t, but we make it crystal clear. You’ll always see the region listed on the product page (e.g. EU). Our system auto-detects your location to help avoid mismatches.

Absolutely. Keydra was built by long-time merchants who know the space inside-out. We launched with one mission: fair pricing, fast delivery, no B.S. That’s why every order is protected, and every deal is real, no hidden fees.

Nope checkout is guest-friendly. But creating a Keydra account unlocks faster order access, easier refunds, and exclusive deals. Totally up to you. We made Keydra to be as convenient as possible.

Other Details

About Opus Magnum EU Steam CD Key

Windows

Mac

Linux

Product Activation Guides

This product will be delivered as a Steam Key

Customer Reviews

Write a Review

Learn more about how Keydra works

We work directly with verified bulk distributors who apply to partner with us. That means no middlemen, no inflated markups, just competitive deals we lock in behind the scenes, so you always get the best possible price.

Yes, every product sold on Keydra is sourced from trusted suppliers and fully verified before going live. We don’t deal in grey-area reselling or sketchy sources. It’s all real, and it’s all backed by our replacement policy.

Most orders are delivered instantly after purchase. Some account-based products may take up to 24 hours for manual processing; but we always aim to get it to you as fast as possible. You’ll see the expected delivery time clearly on each product page.

Never. All of our products are digital, that means, whether it's a code, an account, or a subscription, everything is delivered online. No physical shipping, no delays, no postage fees.

We do offer refunds or replacements for faulty products as long as the issue is reported within the valid window. To qualify, the product must not have been redeemed or used improperly. Instant refunds apply to keys that haven't been revealed.

Some are, some aren’t, but we make it crystal clear. You’ll always see the region listed on the product page (e.g. EU). Our system auto-detects your location to help avoid mismatches.

Absolutely. Keydra was built by long-time merchants who know the space inside-out. We launched with one mission: fair pricing, fast delivery, no B.S. That’s why every order is protected, and every deal is real, no hidden fees.

Nope checkout is guest-friendly. But creating a Keydra account unlocks faster order access, easier refunds, and exclusive deals. Totally up to you. We made Keydra to be as convenient as possible.

Other Details

Consider these

Products that are popular among players like you

Unreal Tournament 2004: Editor's Choice Edition Steam Gift

Dead Island Riptide Steam Gift

Crypto Voucher Bitcoin (BTC) 80 AUD Key

Kena: Bridge of Spirits - Digital Deluxe Upgrade DLC EU PS4/PS5 CD Key

Tactics Ogre: Reborn Digital Premium Edition EU PC Steam CD Key

RESIDENT EVIL 2 / BIOHAZARD RE:2 Deluxe Edition RU VPN Required Steam CD Key

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Help to accelerate Keydra by sharing your feedback on Trustpilot.
Built with love, for Gamers.