Buy Heartworm Steam Key

PC
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A Heartworm 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 €3.35 (€3.50 with fees, -76%) at Difmark, Steam Account format · Cheapest official key: €5.21 (€6.20 with fees), 58% below the €14.79 (no fees) Steam price · 4 verified stores, 4 offers in stock · Updated 37min ago.

Top 3 stores

Verified stores

Final prices with fees

See 3 keys from €6.20 Cheaper? 1 account from €3.50 See all 4 offers
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Heartworm prices: 12-month price history →
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Promoted store
Difmark 4.1 (14.2k)
Coupon
Gocdkeys -16% copy Copied!
€3.99 €3.35 -76%Save €12 vs Steam
Store Difmark
Global Icon
Region Global
Steam Account
PromotediFeatured placement paid by the storeCheapest deal Best rated Product type Steam Account
Standard
Edition Standard
Description Icon
Fees +€0.15
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
Eneba 4.4 (328.4k)
Coupon
Gocdkeys10 -10% copy Copied!
€5.79 €5.21 -58%Save €9 vs Steam How to get this priceHow to get
Store Eneba
Global Icon
Region Global
Steam Key
Best ratediThe store with the best user rating among the offers for this game · 4.4/5Cheapest deal Product type Steam Key
Standard
Edition Standard
Description Icon
Fees +€0.99
Eneba 4.4 (328.4k)
Coupon
Gocdkeys10 -10% copy Copied!
€5.79 €5.21 How to get this priceHow to get
Store Eneba
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees +€0.99
Official stores
Fanatical 4.6 (78.7k)
No code available
€14.79
Store Fanatical
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees -
Steam 1.8 (3.7k)
No code available
€14.79
Store Steam
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees -

About Heartworm

Sam, unable to move on from the death of her beloved grandfather, falls down an internet rabbit hole chasing the promise of reuniting with him. 

Following the lead of a mysterious forum, she finds herself at a supposedly supernatural house in the mountain, hoping to make contact with the other side.

  • A journey through grief and loss within retro-inspired atmospheric environments.

  • 4-6 hours of gameplay with multiple endings

  • Both pre-rendered and in-game cutscenes

  • A focus on exploration with classic puzzles, and limited combat using a camera as a weapon

  • A modern control scheme with 3rd person over-the-shoulder aiming and optional classic tank controls

  • Optional pixelation and retro effects calling back to the first 3D console era for a more authentic experience

  • A haunting original soundtrack

Experience a psychologically-focused narrative love letter to late 90s genre staples Silent Hill and Resident Evil.

How much does Heartworm for PC cost right now?

Heartworm for PC starts at €3.35 (€3.50 with fees) at Difmark, 76% under the €14.79 (no fees) of the official store — but that is a shared account, not a key of your own. If you want a key tied to your own account, the cheapest is €5.21 (€6.20 with fees) at Eneba.

That €3.35 (€3.50 with fees) already includes the Gocdkeys coupon, so apply it at checkout or the store will show you a higher price.

Only 4 offers across 4 stores carry it, and thin supply means the price barely moves.

Shared account !
€3.35
with coupon · was €3.99
Cheapest, but the game is not yours
Steam Key
€5.21
with coupon · was €5.79
Stays on your account for good

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

That €5.21 (€6.20 with fees) key is expensive for what it usually costs.

  • Those €5.21 (€6.20 with fees) are 7% above what it usually costs, measured on the store price.
  • Only 3 stores sell the Steam Key, and with that little competition the price barely moves.
  • Across the 208 days we have tracked it, it has only been pricier than today on 30 days. The lowest it has ever cost is €3.86.
If you do not need it today, waiting pays off: we have seen it at €3.86 and right now you would pay €1.93 more. We will tell you the day it drops.

Worked out from 751 daily records of the Steam Key for Heartworm across 4 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.

Which Heartworm format should you buy?

With the shared account at Difmark you log into an account that already owns the game: it is the cheapest route, but it never becomes yours and the seller keeps the credentials. If they ever lose or change them, you lose access.

The key at Eneba costs €1.86 (€2.70 with fees) more, but you redeem it on your own account and the game stays there for good. That is the difference between renting and buying.

Can you activate Heartworm in US?

All 4 offers are Global, so the code redeems on any account no matter where it was created.

INFORMATION ABOUT Heartworm FOR PC


Heartworm is a haunting story of grief, obsession, and the impossible desire to recover what was lost.

The protagonist, Sam, unable to overcome the death of her grandfather, delves into the darkest corners of the internet in desperation, where she finds a mysterious forum that promises a way to contact the dead.

Following its directions, she arrives at an isolated house in the mountains, shrouded in rumors of supernatural phenomena, hoping to reunite with him.

The game takes place in atmospheric environments reminiscent of classic 90s psychological horror. With a customizable retro aesthetic, it attempts to mimic the pixelated look of early 3D consoles.

The player must explore in depth, solve puzzles, and confront threats using a camera as their only weapon, in a limited combat system that reinforces the sense of vulnerability.

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

It is a key that will allow you to download the game Heartworm on your PC from official download platforms.
As of 23/10/2026, in United States, the best price we have found in our selection of online stores that include the key for Heartworm on PC is €5.21 (€6.20 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 Heartworm 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 Heartworm, 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 Heartworm for PC Digital?

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Heartworm

Is it worth it?

Good overall reception
  • 80/100Critics' average score
  • 71%Critics recommend it7 critic reviews
  • 87%Steam reviewsVery Positive · 454 reviews
Write a review → See it on Steam →

What the press says

Average of 78 across 6 reviews
US 5 ES 1

TheBigBois

90

Heartworm is more than just a tribute—it’s an evolution. Equal parts chilling and contemplative, it knows when to whisper and when to scream. From the... Read more

8Bit/Digi

90

Heartworm is not just a love letter to classic horror games, but an odyssey through loss and the emotional toll of grief. On the surface,... Read more

TheSixthAxis

80

Heartworm is another top notch indie horror to add to the collection and one that perhaps feels the closest to the games that clearly influence... Read more

Try Hard Guides

80

Heartworm works best in its subtlest areas, leaving players to experience the tension of its beautifully creepy environments and its subtle, anxiety-inducing score and story.... Read more

About the game

Release date
31 Jul 2025
Genre
Adventure Horror Psychological Horror
Modes
Singleplayer
Setting
3D Exploration Third Person
Languages
English* French German

* languages with full audio

Requirements

Minimum:
  • OS *: Windows 7 (SP1+) or Windows 10
  • x86, x64 architecture with SSE2 instruction set support
  • 8 GB RAM
  • DX10, DX11, DX12 capable
  • Version 10
  • 8 GB available space

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