Which digital format of Serum 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 Serum, 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.

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.

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Buy Serum CD Key for PC

Q: Why is the Steam Key of Serum 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 Serum to your game library. The account format requires more complicated steps and is more prone to errors during activation.

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Prices for Serum Steam Key for PC (August 2026)

The cheapest price is 4.55€ (-77%) at HRKGame with a rating of 4.2 (29.6k reviews) · Version Steam Key · Region Global · We compare prices at 13 verified stores with 27 offers in stock · Updated on 03/08/2026 28min. ago

Supporter Ed.

Cheapest

4.2(29.6k)

€4.55 €5.17

Gocdkeys12

-12%

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Steam Key

Official store

4.3(629)

€19.56

No code available

View 27 offers from €4.55

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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”

You still don't have enough tickets!

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If you have not broken any of our rules, we will send you the cheapest version of the game to the email address associated with your account.
In the event that the game is out of stock or only available in a format such as accounts or physical, we will offer the possibility of an exchange for a prepaid card for the minimum value of the game on our platform.
For console games, a prepaid card of different amounts will be given instead of the game, due to regional limitations.
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Game redemption is only allowed once every 6 months per user.

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We will start the verification process of your account, which may take 48-72 hours.
If you have not broken any of our rules, we will send you the cheapest version of the game to the email address associated with your account.
In the event that the game is out of stock or only available in a format such as accounts or physical, we will offer the possibility of an exchange for a prepaid card for the minimum value of the game on our platform.
For console games, a prepaid card of different amounts will be given instead of the game, due to regional limitations.
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This promotion is only available to US, UK and EU users.
Game redemption is only allowed once every 6 months per user.

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Editions Standard Ultimate Supporter

Format Steam Key Steam Gift

Global EU US UK

Official stores 4 stores Hide Accounts

Taxes not included!

Taxes included!

Prices without final payment fees but with discount coupons applied. Prices include payment fees and any store discount code applied. Basic price Fees incl.

Key stores

Promoted store

4.1 (12.1k)

€9.82 €8.25

Product type Steam Key

Edition Standard

Fees +€0.69

HRKGame
Gamivo
Eneba
Cdkeys Com
Driffle
G2A
Kinguin
YUPLAY
Instant Gaming

4.2 (29.7k)

€5.17 €4.55

Product type Steam Key

Edition Standard

Fees +€1.12

3.8 (49.5k)

Subscription from 2.01€/month

€5.84 €4.73 How to get this price

Region Global

Product type Steam Key

4.4 (309.2k)

€6.00 €5.40 How to get this price

Region US

Product type Steam Key

4.8 (223.8k)

Product type Steam Key

4.4 (309.2k)

€6.69 €6.02 How to get this price

Region Global

Product type Steam Key

4.4 (309.2k)

€6.90 €6.21 How to get this price

Region Europe

Product type Steam Key

Edition Standard

Fees +€0.53

4.3 (2.7k)

Subscription from 4.99€/month

€6.97 €6.27

Product type Steam Key

4.8 (223.8k)

Product type Steam Key

4.8 (223.8k)

Product type Steam Key

Edition Ultimate

Fees -

4.0 (344.2k)

No code available

€8.32 How to get this price

Region Global

Product type Steam Key

Edition Standard

Fees +€0.02

4.0 (344.2k)

No code available

€10.53 How to get this price

Region Europe

Product type Steam Key

4.4 (309.2k)

€15.88 €14.29 How to get this price

Region Global

Product type Steam Key

Edition Supporter

4.4 (309.2k)

€15.88 €14.29 How to get this price

Region Europe

Product type Steam Key

Edition Supporter

Fees +€1.22

4.6 (118.9k)

Subscription from 2.99€/month

€19.00 €17.10 How to get this price

Region Global

Product type Steam Key

Edition Ultimate

Fees +€2.09

4.6 (118.9k)

Subscription from 2.99€/month

€20.13 €18.12 How to get this price

Region Global

Product type Steam Key

4.8 (2.5k)

Product type Steam Key

4.7 (830.7k)

Product type Steam Key

Edition Supporter

4.0 (344.2k)

€23.75 €21.61 How to get this price

Region Global

Product type Steam Key

4.8 (2.5k)

Product type Steam Key

Edition Supporter

4.7 (830.7k)

Product type Steam Key

4.8 (2.5k)

Product type Steam Key

Edition Ultimate

Fees +€1.23

4.0 (344.2k)

No code available

€34.88 How to get this price

Region Global

Product type Steam Gift

Edition Standard

Fees +€0.10

Official stores

GamesPlanet
GamersGate
Steam

4.3 (629)

No code available

€19.56

Region US

Product type Steam Key

3.6 (527)

Product type Steam Key

1.8 (3.7k)

Product type Steam Key

3.6 (527)

Product type Steam Key

Edition Ultimate

Fees -

Go to FAQ's

Gocdkeys Recommendations What are you looking for? Select your region Which version do you prefer? Search results

The cheapest offer is from HRKGame in KEY format for a price of 4.55€

Buying at HRKGame saves you 77% compared to the official store

Among the listed stores, Loaded4.8(223.8k) is one of the best rated by the community with a price of 5.89€

Gocdkeys - Transparency and credibility

At GOCDKEYS we display real prices from 49 verified stores. Some links may be affiliate links, which help us keep the service running at no extra cost to users. Prices and conditions are always exactly the same as those offered by the store. All stores go through our own store verification methodology, so you can buy with complete confidence.

If you have doubts before buying, we explain why CD keys are legal and break down the most common myths and facts about digital games, so you can make your decision with clear and up-to-date information.

More than 4.5M users in 14 years have trusted us to find the best deals — Trustpilot 4.1/5 ★
We compare 49 verified stores where we find the best deals for gamers
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We track prices every 2 hours and sort by final cost - Last update: 2026-08-03 10:02:06

About Serum

Unravel the mystery of Serum and survive the fight against time amidst a ruined world of destruction and mutated creatures.

Your life is at stake! The toxic fog obscures the dangers in an apocalyptic world where every second counts. A relentless timer on your arm decides between life and death. Prove your courage, explore the mysterious environment for resources and brew serums for unique abilities. Every dose of serum can make the difference in the fight for survival against mutated enemies. Find shelter in the chaos, search for technology and modify weapons for greater effectiveness. The race against time begins now.

Unravel the mystery of Serum and find your way out while exploring different biomes and their unique characteristics. Find clues about past events and use the new-found wisdom to survive while experiencing beautiful graphics delivered with the power of Unreal Engine 5.

Figure out how to create new tools, traps, and weapons. Gather Serum from animals and plants and expand your safe zone to create a sustainable source of the substance. Prepare wisely for your next excursion to ensure it won’t be your last one.

Take advantage of a unique brewing mechanism that allows you to create various mixtures of Serum. Experiment with dozens of combinations and use them to enhance your abilities. Ensure you’re carrying enough to get you out of a tough spot.

Clash with various creatures using a multitude of weapons: melee, ranged, and throwing including spears, bows and clubs. Use Serum to infuse and modify your weapons and gain the upper hand against mutated abominations that roam the island.

Endure in a hostile environment under the pressure of time. Manage your health, stamina, and beware of Serum side effects.

How much does Serum for PC cost right now?

Serum for PC starts at €4.96 at Gamivo, a Steam key, which is 80% under the €24.99 it costs on the official store.

We have never recorded it cheaper than this.

That €4.96 already includes the GCDKGamivo coupon, so apply it at checkout or the store will show you a higher price.

The cheapest one listed, €4.55 at HRKGame, is out of stock. The cheapest you can actually buy today is €4.96 at Gamivo.

There are 27 offers across 13 stores, 26 of them in stock right now, which is what the price above is picked from.

Which format should you buy?

By format: Steam Key from €4.96 and Steam Gift from €34.88.

Which editions are on sale?

Beyond the standard edition at €4.96, there is the Ultimate at €8.29 at Cdkeys Com, €3.33 more and the Supporter at €14.29 at Eneba, €9.33 more. Check on the store what each one adds before paying the difference.

Can you activate it in your region?

24 of the 27 offers work on US — the Global ones plus the ones issued for your own region.

Why is one listing so expensive?

One listing is worth ignoring: the Steam key that GamersGate has at €34.99 is more than 7 times the cheapest offer and is not what this game costs. The number to work from is €4.96 at Gamivo.

So, which Serum deal should you buy?

At €4.96, Gamivo is where this one settles.

Information about Serum for PC

Serum is an action-adventure game where the fight for survival is a race against the clock in an environment devastated by destruction and plagued by mutated creatures. Face deadly challenges as you enter the dense smog that hides all kinds of dangers. Every second counts, and a relentless stopwatch on your arm reminds you of the constant threat of death.

Explore unique biomes and unlock the secrets of Serum as you venture into this mysterious world. Uncover clues about past events and adapt your survival strategy as you immerse yourself in stunning landscapes, powered by Unreal Engine 5. Collect resources, hunt creatures, and grow plants to ensure your livelihood in this hostile environment.

Experiment with different serum formulas to gain unique abilities and improve your chances of survival. Use an innovative brewing system to create diverse whey blends and customize your strategic approach. Take on the mutated creatures with a variety of weapons, modified with serum to increase their combat effectiveness.

Most common FAQs when buying Serum for PC in digital format:

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

As of 03/08/2026, in United States, the best price we have found in our selection of online stores that include the key for Serum on PC is €4.55.

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 Serum to your game library. The account format requires more complicated steps and is more prone to errors during activation.

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 Serum, and they will provide a new key. You can also contact us, and we’ll help you out.

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.

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 Serum for PC Digital?

5/5 (1 Comments)

0

Soli Ny

2025-07-01 20:06:33

A futuristic FPS with attractive visuals, solid controls and combat based customization. Travel through neon illuminated labs, tweak load outs to your liking, and unleash grenades and technology-based powers. The gunplay was enough to keep my attention, but there is a noteworthy thin amount of story and while I found it fun, it probably would not hold up too long for action sessions.

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About of Serum

Release date	05/23/2024
Users rating	5/5 (1 Comments)
Steam comments	Mixed Mixed (245 Comments)
Categories	Action
Tags Adventure 3D RPG Combat Exploration Horror Action-Adventure Zombies Interactive Fiction PvE

Languages

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

Requirements

Minimum:

Requires a 64-bit processor and operating system
Windows 10 (x64)
Intel Core i5-8400 or AMD Ryzen 5 2600X
12 GB RAM
NVIDIA GeForce GTX 1070, 8 GB or AMD Radeon RX Vega 56, 8 GB or Intel Arc A750, 8 GB
Version 11
15 GB available space
Sound Card: DirectX compatible
Additional Notes: Low settings, 1080p @ 30 FPS. CPU must support at least the SSE3 instruction set. Does not require the AVX instruction set.

Recommended:

Requires a 64-bit processor and operating system
Windows 10 (x64)
Intel Core i5-10400 or AMD Ryzen 5 3600X
16 GB RAM
NVIDIA GeForce RTX 3060 Ti, 8 GB or AMD Radeon RX 6600 XT, 8 GB
Version 11
15 GB available space
Sound Card: DirectX compatible
Additional Notes: High settings, 1080p @ 60 FPS. CPU must support at least the SSE3 instruction set. Does not require the AVX instruction set.

How to obtain more tickets

Download our Extesion!

Write a store review!

+15 Tickets

To win the tickets, your email in Gocdkeys must match your email in Discord.

The comment must be original, with a minimum of 250 characters, will be reviewed manually and can take up to 48h to be approved.

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Buy Serum CD Key for PC

Share this game

Prices for Serum Steam Key for PC (August 2026)

Recommended

Cheapest

Official store

About Serum

How much does Serum for PC cost right now?

Which format should you buy?

Which editions are on sale?

Can you activate it in your region?

Why is one listing so expensive?

So, which Serum deal should you buy?

Information about Serum for PC

Most common FAQs when buying Serum for PC in digital format:

Need more help? Use our FAQs.

What do our users think of Serum for PC Digital?

0

About of Serum

Languages

Related news

ign | 2024-12-01

ign | 2024-06-06

Requirements

How to obtain more tickets

Top PC Digital Essentials

Serum

Buy Serum CD Key for PC

Prices for Serum Steam Key for PC (August 2026)

Recommended

Cheapest

Official store

You still don't have enough tickets!

Product you are redeeming

You have enough tickets!

Product you are redeeming

About Serum

How much does Serum for PC cost right now?

Which format should you buy?

Which editions are on sale?

Can you activate it in your region?

Why is one listing so expensive?

So, which Serum deal should you buy?

Information about Serum for PC

Most common FAQs when buying Serum for PC in digital format:

Need more help? Use our FAQs.

What do our users think of Serum for PC Digital?

0

About of Serum

Languages

Related news

ign | 2024-12-01

ign | 2024-06-06

Requirements

How to obtain more tickets

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