Buy ZERO PROTOCOL Steam Key

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A ZERO PROTOCOL 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 €2.52 (€3.07 with fees, -42%) at Kinguin, 42% below the €5.26 (no fees) Steam price · 5 verified stores, 6 offers in stock · Updated 01h 16min ago.

See 6 keys from €3.07
Historical prices
Medium price
Current minimum price
Zero Protocol prices: 12-month price history →
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Final prices with fees and discounts applied

Promoted store
Difmark Digital Keys 4.1 (14.2k)
Coupon
Gocdkeys -16% copy Copied!
€5.81 €4.88
Store Difmark Digital Keys
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees +€0.22
Kinguin 4.6 (120.4k)
Subscription from 2.99€/month
-15%
Coupon
OCTGOC10 -10% copy Copied!
€2.80 €2.52 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 +€0.55
Driffle 4.4 (9.2k)
Subscription from 4.99€/month
-8%
Coupon
GOCDKEYS10 -10% copy Copied!
€2.97 €2.67
Store Driffle
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees +€0.50
Kinguin 4.6 (120.4k)
Subscription from 2.99€/month
-15%
Coupon
OCTGOC10 -10% copy Copied!
€3.82 €3.44 How to get this priceHow to get
Store Kinguin
Europe Icon
Region Europe
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees +€0.62
G2A 4.0 (346.2k)
No code available
€5.12 How to get this priceHow to get
Store G2A
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees +€0.29
Official stores
Steam 1.8 (3.7k)
No code available
€5.26
Store Steam
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees -

How much does ZERO PROTOCOL for PC cost right now?

ZERO PROTOCOL for PC starts at €2.52 (€3.07 with fees) at Kinguin, a Steam key, which is 42% under the €5.26 (no fees) it costs on the official store.

That €2.52 (€3.07 with fees) already includes the OCTGOC10 coupon, so apply it at checkout or the store will show you a higher price.

Supply is thin — 6 offers from 5 stores — and thin supply keeps prices steady rather than falling.

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

That €2.52 (€3.07 with fees) key is expensive for what it usually costs.

  • Those €2.52 (€3.07 with fees) are 55% above what it usually costs, measured on the store price.
  • Only 5 stores sell the Steam Key, and with that little competition the price barely moves.
  • Across the 365 days we have tracked it, it has only been pricier than today on 8 days. The lowest it has ever cost is €1.02.
If you do not need it today, waiting pays off: we have seen it at €1.02 and right now you would pay €1.78 more. We will tell you the day it drops.

Worked out from 942 daily records of the Steam Key for ZERO PROTOCOL across 5 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 ZERO PROTOCOL in US?

5 of the 6 offers work on US — the Global ones plus the ones issued for your own region.

Information about ZERO PROTOCOL for PC


Enter the enigmatic world of the IAS Antarctic Research Complex, where your survival becomes a constant struggle in this first-person sci-fi thriller. Face challenges that require wits and skill: you'll need to select passwords to access doors, search for keycards for terminals, repair broken devices, and combine items. This game won't make things easy for you, so be prepared to think critically.

Even though you have a gun, the feeling of safety is short-lived. The enemies lurking in this environment are lethal, and not all of them can be eliminated. The graphics evoke the aesthetics of classic 3D titles such as Zero Tolerance, System Shock, and Half-Life, creating a dense and oppressive environment that reinforces the sense of danger. Carefully crafted sound effects add an extra layer of tension to the experience.

The balance between clarity and madness is key in this game. Every decision you make, whether conscious or impulsive, will have repercussions that will lead you down different paths. As you explore, you'll need to keep an eye out for details and clues that can help you unravel the complex's secrets.

With each step, the player will be forced to adapt and react to a hostile environment. Combining elements and strategically using resources will be essential to progressing through the story. Immersion in this eerie world feels palpable, making every action count in your search for answers.

Most common FAQs when buying ZERO PROTOCOL for PC in digital format:

It is a key that will allow you to download the game ZERO PROTOCOL on your PC from official download platforms.
As of 03/10/2026, in United States, the best price we have found in our selection of online stores that include the key for ZERO PROTOCOL on PC is €2.52 (€3.07 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 ZERO PROTOCOL 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 ZERO PROTOCOL, 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 ZERO PROTOCOL for PC Digital?

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ZERO PROTOCOL

Is it worth it?

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Very Positive 495 reviews on Steam
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5.0/5 1 ratings
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About the game

Release date
26 Sep 2024
Genre
Adventure Horror Psychological Horror
Setting
Story Rich Exploration Mystery
Languages
English Russian French

Requirements

Minimum:
  • OS *: Windows 7 or newer
  • Intel Core i3
  • 2048 MB RAM
  • 512 MB graphics card with WebGL support

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