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Buy Sirius Online Steam Key

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

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Sirius Online Steam Key: compare prices from 4 offers (August 2026)

A Sirius Online 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 €7.70 at Kinguin · 4 verified stores, 4 offers in stock · Updated 01h 48min ago.

Gift cards

Cheapest

€8.56 €7.70 View deal

AUGGOC10

-10%

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See 5 keys from €7.70

Historical prices

Medium price

Current minimum price

Sirius Online 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”

Editions Standard

Format Steam Key

Global EU US UK

Official stores Hide Accounts

Resellers

No payment fees With payment fees Basic price Fees incl.

Promoted store

Difmark Digital Keys 4.1 (14.2k)

Coupon

Gocdkeys -16%

Copied!

€9.98 €8.38

Store Difmark Digital Keys

Region Global

Product type Steam Key

Edition Standard

Fees +€0.70

Kinguin
HRKGame
G2A
K4G

Kinguin 4.6 (120.4k)

Subscription from 2.99€/month

€8.56 €7.70 How to get this priceHow to get

Store Kinguin

Region Global

Product type Steam Key

HRKGame 4.2 (29.7k)

€8.96 €7.88

Product type Steam Key

Edition Standard

Fees +€1.65

G2A 4.0 (346.2k)

No code available

€11.83 How to get this priceHow to get

Store G2A

Region Global

Product type Steam Key

K4G 4.3 (17.6k)

€15.36 €13.21

Product type Steam Key

Edition Standard

Fees +€1.69

About Sirius Online

War. A never ending source of waste. A never ending demand for more lives and resources. The Year is 2436, and humanity, once again, wages war on itself. Nearly a hundred years ago we settled on the Sirius Star System, a rich system with two habitable planets. The first Settlers, now forming the Sirius Colonial Council built this ecology from the ground up. They self-governed and prospered. Five years ago, the Terrans appeared, demanding to return the Control over the System. Failure to do so would result in catastrophic response from the Terran Reclaim Forces.

And so, once again, war erupts.

Take part of the war or live along both sides, trade, fight, think and explore. Be the tip at the iceberg of the upcoming conflict. Control the Economy with your Trading Craft. Find unimaginable riches in our galaxy quadrant. Battle Pirates and even more sinister forces. Create your own Empire among the Stars.

Sirius 1.3: Enemies of the Gods

If you can read this, you've caught me red handed, updating this game.

Features

Explore Planetary Systems with a living economy and hidden riches and lore.
Take your Side in an Endless war between the SCC and the TRF. Defend your Homeland or take it back for Earth
Influence a steadily changing market of supply and demand and work your way up to bigger ships
Survive the onslaughts of an unforgiving AI assault destines to kill everything living.
Be a part of an ever evolving universe
NEW: Twitch integration. Stream the game and have your viewers send you gifts or pirates!

How much does Sirius Online for PC cost right now?

Sirius Online for PC starts at €7.70 at Kinguin, a Steam key.

We have never recorded it cheaper than this.

That €7.70 already includes the AUGGOC10 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.

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

That €7.70 key is expensive for what it usually costs.

Those €7.70 are 625% above what it usually costs, measured on the store price.
Only 4 stores sell the Steam Key, and with that little competition the price barely moves.
Across the 447 days we have tracked it, it has only been pricier than today on 0 days. The lowest it has ever cost is €1.13.

If you do not need it today, waiting pays off: we have seen it at €1.13 and right now you would pay €7.43 more. We will tell you the day it drops.

Worked out from 1,387 daily records of the Steam Key for Sirius Online across 7 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 Sirius Online in US?

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

This product is a digital version of Sirius Online, which once purchased you must enter the digital cd key, that you will recive in your email, into a valid Steam account. Sirius Online is a space-based MMO inspired by Freelancer, the Microsoft-90s game. One of our main tasks will be to explore space, alone or together with friends, and live a lot of adventures search of riches, whether you decide to be a trader, a mercenaries or a pirate. Build a giant empire or a ruthless murderer pirate unsuspecting traders, defenseless miners or creates powerful fleets to protect your friends, the choice is yours. Online Sirius is equipped with a easy and intuitive control system, action-oriented. We will have great freedom to make our decisions, whatever the way you choose. Remember that this game is in Early Access, so it is not yet completed and you may find bugs or errors during your adventures.

Most common FAQs when buying Sirius Online for PC in digital format:

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

As of 24/08/2026, in United States, the best price we have found in our selection of online stores that include the key for Sirius Online on PC is €7.70.

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 Sirius Online 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 Sirius Online , 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 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
24/7 support to help you with any issues in your purchases
We track prices every 2 hours and sort by final cost - Last update: 2026-08-24 14:08:25

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Sirius Online

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