Buy Aethernaut Steam Key

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An Aethernaut 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 €5.42 (€6.20 with fees, -62%) at Kinguin, 62% below the €16.49 (no fees) Steam price · 8 verified stores, 8 offers in stock · Updated 07h 04min ago.

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Promoted store
Difmark Digital Keys 4.1 (14.2k)
Coupon
Gocdkeys -16% copy Copied!
€16.77 €14.09 -11%Save €2 vs Steam
Store Difmark Digital Keys
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Region Europe
Steam Key
PromotediFeatured placement paid by the storeCheapest deal Best rated Product type Steam Key
Standard
Edition Standard
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Fees +€0.63
Instant Gaming 4.7 (843.1k)
No code available
€6.39 -61%Save €11 vs Steam
Store Instant Gaming
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Region Global
Steam Key
Recommended by GoCDKeysiStore recommended by GOCDKEYS for this gameCheapest deal Best rated Product type Steam Key
Standard
Edition Standard
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Fees -
Instant Gaming 4.7 (843.1k)
No code available
€6.39 -61%Save €11 vs Steam
Store Instant Gaming
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Region Global
Steam Key
Best ratediThe store with the best user rating among the offers for this game · 4.7/5Cheapest deal Product type Steam Key
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Fees -
Kinguin 4.6 (124.5k)
Subscription from 2.99€/month
-15%
Coupon
OCTGOC10 -10% copy Copied!
€6.02 €5.42 -62%Save €11 vs Steam How to get this priceHow to get
Store Kinguin
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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 +€0.78
Kinguin 4.6 (124.5k)
Subscription from 2.99€/month
-15%
Coupon
OCTGOC10 -10% copy Copied!
€6.02 €5.42 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 +€0.78
Instant Gaming 4.7 (843.1k)
No code available
€6.39
Store Instant Gaming
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees -
G2A 4.0 (352.8k)
No code available
€9.58 How to get this priceHow to get
Store G2A
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Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
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Fees +€0.29
Key4Games 4.3 (37)
No code available
€16.82
Store Key4Games
Europe Icon
Region Europe
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees +€0.90
Official stores
GamesPlanet 4.3 (629)
No code available
€13.65
Store GamesPlanet
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Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
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Fees -
Greenmangaming 4.7 (43.9k)
No code available
€16.49
Store Greenmangaming
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Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees -
Steam 1.8 (3.7k)
No code available
€16.49
Store Steam
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees -

About Aethernaut

"

Aethernaut is a first person puzzle game set in an open steampunk world. Guided by the voice of Cornell, a scientist who claims to want to help you, you are tasked with solving various puzzles to progress and reach the deeper areas of the Construct. 

Choose how the story unfolds based on your answers to Cornell’s philosophical questions, as he seeks to better understand your nature and personality. Would you rather be remembered forever as an evil tyrant, or be completely forgotten? Is happiness or usefulness a more important purpose in life? When we fall in love, do we love the real person or just our idea of that person?

Through your answers, you will discover yourself and learn more about your past, and how you are able to survive the deadly aether. 

But there is more to the story. As you delve deeper into the abandoned Construct, an unseen entity tries to make contact with you, and begs for your help. Who will you trust? Who are you, really?

STEAMPUNK PUZZLES

Solve puzzle rooms using light, sensors, portals and time travel to gather the aether vials and access the core of the Construct.

EXPLORE THE CONSTRUCT

Discover hidden secrets within the Construct. Jump, climb, and use the portals to reach new areas.  

UNLOCK YOUR STORY

How will you answer Cornell’s questions? His increasingly personal queries will prompt you to reveal your personality, which will in turn shape the story around you. With 6 possible endings, depending on your answers and how you solve the puzzles (or if you do at all!) Aethernaut will unlock the depths of your soul.

How much does Aethernaut for PC cost right now?

Aethernaut for PC starts at €5.42 (€6.20 with fees) at Kinguin, a Steam key, which is 62% under the €16.49 (no fees) it costs on the official store.

That €5.42 (€6.20 with fees) already includes the OCTGOC10 coupon, so apply it at checkout or the store will show you a higher price.

Just 8 stores stock it, 8 offers in all, so there is little here to push the price either way.

That puts it 5% under its average of €6.31 since 2022, so today is a better entry point than most days of its life.

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

That €5.42 (€6.20 with fees) key is at its usual price: no bargain, no spike.

  • Those €5.42 (€6.20 with fees) are 4% above what it usually costs, measured on the store price.
  • 8 stores sell the Steam Key at the same time, and with that much competition the price moves almost daily.
  • Not counting today, 393 days out of the 906 days on record were this cheap or cheaper; the lowest it has ever cost is €2.96.
It is not a bad price, but it is not this Steam Key's floor either. If you are in no rush, we will tell you the day it drops.

Worked out from 2,142 daily records of the Steam Key for Aethernaut across 9 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 Aethernaut in US?

6 of the 8 offers work on US — the Global ones plus the ones issued for your own region.

WHAT CAN YOU FIND ON GOCDKEYS?

You will find a price comparison in different stores for the standard PC edition of the video game Aethernaut in Steam Key format, to make it easier for you to find the cheapest price or the best deal.

WHAT YOU SHOULD KNOW BEFORE BUYING Aethernaut?


What does this product include?

It includes the Aethernaut video game for PC, although some stores may include special editions with additional content such as a Deluxe or Ultimate edition.

Are there regional restrictions for this PC game?

This product may 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 let you know if there are any regional restrictions.

How will I receive the product after I purchase it?

Your product will be delivered immediately after payment via email, where you will receive a digital code, also called CD Key, which you can redeem without any problems in the official Steam store.

REASONS TO BUY Aethernaut FOR PC


1- Aethernaut is a first-person puzzle video game set in a science fiction world.

2- Enjoy space-altering mechanics in the style of video games such as Portal or Talos Principle.

3- More than 100 rooms with puzzles and obstacles that will force you to use all your logical capacity.

4- Let yourself be amazed by an impressive steampunk style setting with amazing neon lights.

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

It is a key that will allow you to download the game Aethernaut on your PC from official download platforms.
As of 24/10/2026, in United States, the best price we have found in our selection of online stores that include the key for Aethernaut on PC is €5.42 (€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 Aethernaut 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 Aethernaut, 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 Aethernaut for PC Digital?

5/5 (1 Comments)
Soli Ny

A first-person steampunk puzzler stylized like Portal. Use light, portals, and time powers to explore a mystery of a Construct. Solo-developed and bloody-mind-f#$kery - the steampunk mechanics stand out but there are probably a few bugs to fix first.

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Aethernaut

Is it worth it?

  • 58%Steam reviewsMixed · 40 reviews
  • 5.0/5GoCDKeys users1 ratings →
Write a review → See it on Steam →

What the press says

US 1

GameGrin

65

Aethernaut brings one core idea to the table and backs it up with solid and varied gameplay on a level comparable to the original Portal,... Read more

About the game

Release date
15 Mar 2022
Genre
Adventure Puzzle Puzzle Platformer
Modes
Singleplayer
Setting
3D Choices Matter Story Rich
Languages
English* French German

* languages with full audio

Requirements

Minimum:
  • OS *: Windows 7 or greater
  • Intel Core i5 @ 2.0 GHz
  • 8 GB RAM
  • GeForce GTX 1070 or AMD Radeon RX Vega 56 4 GB
  • 13 GB available space
  • Sound Card: Standard onboard sound card
Recommended:
  • OS *: Windows 7 or greater
  • Intel Core i5 @ 2.0 GHz
  • 16 GB RAM
  • GeForce GTX2060 or AMD Radeon RX 5600 XT
  • 15 GB available space
  • Sound Card:
Minimum:
  • 10.12.6 (Sierra)
  • 1.8GHz
  • 4 GB RAM
  • 1280x720 or better video resolution with Metal support
  • 4 GB available space
  • Sound Card: Standard onboard sound card
  • Additional Notes: Requires a 64-bit processor and operating system with Metal support
Recommended:
  • 10.12.6 (Sierra)
  • 1.8GHz
  • 8 GB RAM
  • 1280x720 or better video resolution with Metal support
  • 4 GB available space
  • Sound Card: Standard onboard sound card
  • Additional Notes: Requires a 64-bit processor and operating system with Metal support
Minimum:
  • Ubuntu 16.04 (64bit)
  • 1.5 GHz CPU
  • 4 GB RAM
  • 1280x720 or better video resolution with Vulkan support
  • 4 GB available space
  • Sound Card: Standard onboard sound card
  • Additional Notes: Requires a 64-bit processor and operating system with Vulkan support

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