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Back 4 blood expansion 2 children of the worm pc cd key

Buy Back 4 Blood Expansion 2 Children of the Worm Steam Key

Q: Why is the Steam Key of Back 4 Blood Expansion 2 Children of the Worm 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 Back 4 Blood Expansion 2 Children of the Worm to your game library. The account format requires more complicated steps and is more prone to errors during activation.

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Back 4 Blood Expansion 2 Children of the Worm Steam Key: compare prices (September 2026)

A Back 4 Blood Expansion 2 Children of the Worm Steam Key — also known as a CD Key or digital code — is the official activation code you redeem on Steam and keep in your library permanently. From €8.99 at Kinguin · 1 verified stores, 1 offers in stock · Updated 06h 16min ago.

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Cheapest

€9.99 €10.09 View deal

SEPGOC10

-10%

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Back 4 Blood Expa… prices: 12-month price history →

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”

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Global EU US UK

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No payment fees With payment fees Basic price Fees incl.

Kinguin

Kinguin 4.6 (120.4k)

Subscription from 2.99€/month

€9.99 €8.99 How to get this priceHow to get

Store Kinguin

Region Global

Product type Steam Key

Edition Standard

Fees +€1.10

How much does Back 4 Blood Expansion 2 Children of the Worm for PC cost right now?

Back 4 Blood Expansion 2 Children of the Worm for PC starts at €8.99 at Kinguin, a Steam key.

That €8.99 already includes the SEPGOC10 coupon, so apply it at checkout or the store will show you a higher price.

There is a single verified offer for it right now, so this price is the market rather than the best of several.

That puts it 24% under its average of €13.13 since 2024, so today is a better entry point than most days of its life.

Is it worth buying the Steam Key for Back 4 Blood Expansion 2 Children of the Worm now or waiting?

That €8.99 key is at one of its best prices.

Those €8.99 are 14% below what it usually costs, measured on the store price.
Only 1 stores sell the Steam Key, and with that little competition the price barely moves.
Not counting today, only 119 days out of the 573 days on record were this cheap or cheaper; the lowest it has ever cost is €3.24.

At this price it is worth buying the Steam Key now: what you stand to gain by waiting is a few euros, and it is not guaranteed.

Worked out from 665 daily records of the Steam Key for Back 4 Blood Expansion 2 Children of the Worm across 3 stores. See the full price history.

The price does not include each store's payment fees. The percentage is measured on the store price, without coupons, because that is how we record the history. The analysis only counts Key offers. Shared accounts, Steam Gift and physical editions stay out, because they are not the same product and their prices move differently.

Can you activate Back 4 Blood Expansion 2 Children of the Worm in US?

All 1 offers are Global, so the code redeems on any account no matter where it was created.

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 Back 4 Blood Expansion 2 Children of the Worm, 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 Back 4 Blood Expansion 2 Children of the Worm STEAM KEY?

What is the Back 4 Blood Expansion 2 Children of the Worm 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 Back 4 Blood Expansion 2 Children of the Worm for PC.

What does this product include?

Everything you need to start playing from home in minutes!

It includes the Back 4 Blood Expansion 2 Children of the Worm 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 Back 4 Blood Expansion 2 Children of the Worm 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 Back 4 Blood Expansion 2 Children of the Worm 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 Back 4 Blood Expansion 2 Children of the Worm Key that you have previously received in the mail.

- The download will start automatically.

REASONS TO BUY Back 4 Blood Expansion 2 Children of the Worm FOR PC

1- With this expansion you will be able to expand your game experience in the popular multiplayer FPS Back 4 Blood with a selection of exclusive additional contents.

2- Children of the Worm includes the following: new playable character (Prophet" Dan), new campaign chapter (Act 5), new enemy threat, new exclusive skins, new weapons, new accessories and much more.

3- Remember that to enjoy the Children of the Worm content you need the Back 4 Blood base game, which is sold separately from this DLC.

Most common FAQs when buying Back 4 Blood Expansion 2 Children of the Worm for PC in digital format:

It is a key that will allow you to download the game Back 4 Blood Expansion 2 Children of the Worm on your PC from official download platforms.

As of 10/09/2026, in United States, the best price we have found in our selection of online stores that include the key for Back 4 Blood Expansion 2 Children of the Worm on PC is €8.99.

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 Back 4 Blood Expansion 2 Children of the Worm 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 Back 4 Blood Expansion 2 Children of the Worm, 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.

Gocdkeys - Transparency and credibility

At GOCDKEYS we display real prices from 48 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 48 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: 2026-09-10 04:09:49

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Back 4 Blood Expansion 2 Children of the Worm

What the press says

COGconnected

Children of the Worm is absolutely the type of expansion that Back 4 Blood deserves. It is substantially better than the awful first expansion. This... Read more

MKAU Gaming

Having a whole new act is great to give players more areas to explore and secrets to find. As we know from the core story... Read more

XboxEra

Children of the Worm adds in some good-looking new environments, a throwaway story featuring a solid new character, and some of the craziest firefights I’ve... Read more

FingerGuns

Back 4 Blood’s second expansion Children of the Worm delivers some urgently needed fresh content with a new campaign, character and weapons. It relies on... Read more