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A Cartridge Defense 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 €0.53 (€0.92 with fees) at Kinguin · 3 verified stores, 3 offers in stock · Updated 02h 41min ago.

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Recommended by GoCDKeysiStore recommended by GOCDKEYS for this game
Instant Gaming 4.7 (843.1k)
Steam Card Top up your Steam Wallet and buy it there. View cards
Kinguin 4.6 (124.5k)
Subscription from 2.99€/month
-15%
Coupon
OCTGOC10 -10% copy Copied!
€0.59 €0.53 How to get this priceHow to get
Store Kinguin
Global Icon
Region Global
Steam Key
Best ratediThe store with the best user rating among the offers for this game · 4.6/5Cheapest deal Product type Steam Key
Standard
Edition Standard
Description Icon
Fees +€0.39
Kinguin 4.6 (124.5k)
Subscription from 2.99€/month
-15%
Coupon
OCTGOC10 -10% copy Copied!
€0.59 €0.53 How to get this priceHow to get
Store Kinguin
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees +€0.39
HRKGame 3.9 (30.9k)
Coupon
Gocdkeys12 -12% copy Copied!
€1.00 €0.88
Store HRKGame
Global Icon
Region Global
Steam Gift
Product type Steam Gift
Standard
Edition Standard
Description Icon
Fees +€0.40
Gamivo 3.9 (50.4k)
Subscription from 2.01€/month
-9%
Coupon
GCDKGamivo -23% copy Copied!
€1.05 €0.81 How to get this priceHow to get
Store Gamivo
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees +€0.78
CJS-CDKeys 4.0 (120.8k)
No code available
€9.87
Store CJS-CDKeys
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees -

How much does Cartridge Defense for PC cost right now?

Cartridge Defense for PC starts at €0.53 (€0.92 with fees) at Kinguin, a Steam key.

That €0.53 (€0.92 with fees) already includes the OCTGOC10 coupon, so apply it at checkout or the store will show you a higher price.

Only 3 offers across 3 stores carry it, and thin supply means the price barely moves.

Is it worth buying the Steam Key for Cartridge Defense now or waiting?

That €0.81 (€1.59 with fees) key is at one of its best prices.

  • Those €0.81 (€1.59 with fees) are 80% below what it usually costs, measured on the store price.
  • Only 2 stores sell the Steam Key, and with that little competition the price barely moves.
  • Not counting today, the lowest we have recorded for the Steam Key across 769 days is €1.05, and today it sits exactly there.
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 963 daily records of the Steam Key for Cartridge Defense 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 Cartridge Defense in US?

All 3 offers are Global, so the code redeems on any account no matter where it was created.

Why is there such an expensive Cartridge Defense offer?

One listing is worth ignoring: the Steam key that CJS-CDKeys has at €9.87 (no fees) is more than 10 times the cheapest offer and is not what this game costs. The number to work from is €0.53 (€0.92 with fees) at Kinguin.

Do you want to buy Cartridge Defense for PC cheaper than in official stores?

Then from Gocdkeys, we recommend that you go for the digital version of the game. The digital versions of the PC games are available in cd key or digital code format, a quick and easy method to download games from the official download platforms such as Steam, Epic Store, Uplay and Origin, among many others.

What is Cartridge Defense 's cd key?

The cd key, or STEAM Key, is a digital code that will allow us to download the Cartridge Defense  game in our PC from the Steam game platform. A series of numbers and letters that when introduced in our library of games will allow us to download this game in digital form.

How can we find the cheapest price for the Cartridge Defense STEAM key?

That's our job and we do it very well! From Gocdkeys we offer a comparison of prices and stores that sell the digital version, in the form of code, STEAM key or Steam Gift of Cartridge Defense . Simply enter the list and you will see all prices ordered from lowest to highest, so it will be easier to find the best deals and prices in a complete selection of online stores specializing in the sale of digital games. 

You can use our filters to filter by versions or activation regions, to make it easier to find the cheapest Cartridge Defense edition that best suits your needs.

Can I trust the shops that sell Cartridge Defense in digital version?

At Gocdkeys we have been working for years to make sure that only the most reliable stores appear in our game price comparator. Each and every one of them has been checked by our team and they offer the best guarantees that the whole process, from the purchase to the delivery of the game keys, is done in the fastest and easiest way possible.

What digital versions of Cartridge Defense are available?

Although from Gocdkeys we indicate that this is the cd key, it can also be available in "Steam Gift" format which means that instead of receiving a code or digital key after purchase, we will receive an activation link, which will activate the game directly in our game library. Steam Gifts can be regionally locked, so please pay attention before purchasing this version.

You will see on a label, next to the price, the version or edition that is sold in each of the stores. If none of them appears, it means that it is a standard version of the game and in digital key format.

What do I do after buying the Cartridge Defense key in any of the stores that appear in Gocdkeys?

Now it's time to activate the game! Right after your purchase in any of the online stores listed in our platform, you will get in your email the digital code or key of the game. After that, and always depending on the version of the game you have bought (cd key or Steam Gift) you will have to enter this key in your "Game Library", in "Add product" and in a matter of seconds the download of the game will start.

If it's a Steam Gift version, simply log in to your account and click the activation link that we've sent you in your email.

Before you buy Cartridge Defense  you should know that...

Cartridge Defense is a strategy game in which you must use your collectible cards to carefully place your turrets and thus repel the hordes of robots that will attack you. You will have up to 9 different types of customizable turrets and both skill and statistics improvements for them. Set the priority system of your turrets to make clear the objectives and combine them for each situation. Collect the bonuses that your enemies will leave on the battlefield when they fall and increase your collection.

Enjoy the visual section with the atmosphere Cibepunk of which they are endowed so much the scenes, as the rest of enemies and the turrets. You will enjoy between 25 and 30 hours of game along 30 amusing levels and 4 zones in which you will be able to obtain up to 287 cards that will allow you to play every level to your style of game, be already with a precise combination or with an extensive repetition. You decide!

Most common FAQs when buying Cartridge Defense for PC in digital format:

It is a key that will allow you to download the game Cartridge Defense on your PC from official download platforms.
As of 26/10/2026, in United States, the best price we have found in our selection of online stores that include the key for Cartridge Defense on PC is €0.53 (€0.92 with fees).
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 Cartridge Defense 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 Cartridge Defense, 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.

What do our users think of Cartridge Defense for PC Digital?

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Cartridge Defense

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What the press says

US 1 SK 1

TechRaptor

20

If you adore turret segments more than anything, love grinding, and have an absolute hate-on for ISIS then IS Defense is the video game for... Read more

About the game

Release date
8 Sep 2020
Genre
Strategy

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