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

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Interplanetary Enhanced Edition Steam Key: compare prices (August 2026)

An Interplanetary Enhanced Edition 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 €1.03 (-93%) at G2A, 93% below the €14.99 Steam price · 14 verified stores, 15 offers in stock · Updated 05min ago.

Steam Key

Cheapest

€1.53 €1.03 -93% Save €14 vs Steam View deal

GCKG2AR8J6B

-33%

Copied!

Steam Key

Official store

€14.99 View deal

No code available

See 15 keys from €1.03

Historical prices

Medium price

Current minimum price

Interplanetary En… 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 4 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!

€1.49 €1.25

Store Difmark Digital Keys

Region Global

Product type Steam Key

Edition Standard

Fees +€0.10

G2A
Gamivo
Eneba
K4G
Instant Gaming
HRKGame
Kinguin
Gameboost
Driffle

G2A 4.0 (346.2k)

Coupon

GCKG2AR8J6B -33%

Copied!

€1.53 €1.03 How to get this priceHow to get

Store G2A

Region Global

Product type Steam Key

Edition Standard

Fees +€0.00

Gamivo 3.8 (49.7k)

Subscription from 2.01€/month

€1.49 €1.15 How to get this priceHow to get

Store Gamivo

Region Global

Product type Steam Key

Eneba 4.4 (312.9k)

€1.40 €1.26 How to get this priceHow to get

Store Eneba

Region Global

Product type Steam Key

K4G 4.3 (17.6k)

€1.59 €1.37

Product type Steam Key

Edition Standard

Fees +€0.17

Instant Gaming 4.7 (833.8k)

No code available

€1.49

Store Instant Gaming

Region Global

Product type Steam Key

Edition Standard

Fees +€0.03

Gamivo 3.8 (49.7k)

Subscription from 2.01€/month

€2.06 €1.59 How to get this priceHow to get

Store Gamivo

Region Global

Product type Steam Key

HRKGame 4.2 (29.7k)

€1.97 €1.73

Product type Steam Key

Edition Standard

Fees +€0.68

Kinguin 4.6 (120.4k)

Subscription from 2.99€/month

€2.02 €1.82 How to get this priceHow to get

Store Kinguin

Region Global

Product type Steam Key

Edition Standard

Fees +€0.22

Gameboost 4.4 (15.1k)

€2.10 €1.83

Product type Steam Key

Edition Standard

Fees +€0.27

Driffle 4.4 (9.2k)

Subscription from 4.99€/month

€2.18 €1.96

Product type Steam Key

Edition Standard

Fees +€0.59

Official stores

GamesPlanet
Fanatical
GamersGate
Steam

GamesPlanet 4.3 (629)

No code available

€11.53

Store GamesPlanet

Region Global

Product type Steam Key

Edition Standard

Fees +€1.29

Fanatical 4.6 (78.7k)

Product type Steam Key

GamersGate 3.6 (527)

Product type Steam Key

Steam 1.8 (3.7k)

Product type Steam Key

Edition Standard

Fees -

About Interplanetary Enhanced Edition

Interplanetary is a turn-based strategic artillery game on a cosmic scale. Develop your home planet and use massive barrages to wage war on a galactic battlefield.

It's an arms race with each planet developing increasingly powerful weapons. Gigantic railgun batteries are the backbone of any interplanetary arsenal, but the cunning use of missiles and precision lasers may just hold the key to victory. Strategic build patterns, upgrades and defense structures might keep your vital installations standing long enough to give you an edge, but it's only a matter of time until all but one will fall.

Sometimes, your greatest foe is the planetary system itself! Don't let the unpredictable gravitational changes get the better of you—observe your surroundings, use them to your advantage, and blast your enemies back to the Stone Age!

Key Features

● Challenge your friends in hotseat or online matches, or fight skirmishes against the AI.
● Build and manage your planet's infrastructure.
● Gather resources and decide the most efficient use for them.
● Research and develop increasingly futuristic technologies.
● Spy on your enemies to reveal the weak points of their infrastructure.
● Use your artillery constructions to aim across the planetary system, avoiding other celestial bodies and their gravity.
● Fire your railguns, missiles and beam weapons to annihilate the enemy and claim the planetary system for your civilization!

Why So Enhanced?

Interplanetary: Enhanced Edition, is a revised version of the original Interplanetary.
The no longer supported original is included in the Enhanced Edition for free, for the purposes of historical preservation and (hopefully) flattering comparison.

The Enhanced Edition features include: Online AI Bots, Elliptic Orbits, Quick Targeting Mode, New Buildings, rebalancing and general fixes and improvements across the board.

How much does Interplanetary Enhanced Edition for PC cost right now?

Interplanetary Enhanced Edition for PC starts at €1.03 at G2A, a Steam key, which is 93% under the €14.99 it costs on the official store.

That €1.03 already includes the GCKG2AR8J6B coupon, so apply it at checkout or the store will show you a higher price.

With 15 offers across 14 stores there is enough competition for the price to move, so the gap between the cheapest and the rest is worth checking before you buy.

Is it worth buying the Steam Key for Interplanetary Enhanced Edition now or waiting?

That €1.03 key is at its usual price: no bargain, no spike.

Those €1.03 are essentially what it usually costs.
14 stores sell the Steam Key at the same time, and with that much competition the price moves almost daily.
Not counting today, 708 days out of the 898 days on record were this cheap or cheaper; the lowest it has ever cost is €1.02.

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 1,738 daily records of the Steam Key for Interplanetary Enhanced Edition across 21 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 Interplanetary Enhanced Edition in US?

All 15 offers are Global, so the code redeems on any account no matter where it was created.

Why is there such an expensive Interplanetary Enhanced Edition offer?

One listing is worth ignoring: the Steam key that GamersGate has at €14.99 is more than 14 times the cheapest offer and is not what this game costs. The number to work from is €1.03 at G2A.

Interplanetary Enhanced Edition is a turn-based strategy game in which we must face other planet and system based on cannon shots.

Artillery will be a vital part of our weapon systems, as we will use it to attack the rest of the planets. Another of the most important points of the title will be the development of our home planet, develop new technologies, acquire new systems of defensive weapons like missiles and lasers, ...

Our main weapon system against the rest of the planets will be the gigantic artillery railway batteries, which will form the backbone of any interplanetary arsenal. We will have extensive evolution and research trees with which we will improve many aspects of our weaponry, such as distance, damage, ...

Building and managing your planet's infrastructure, pooling resources and deciding the most efficient use for them, researching and developing increasingly futuristic technologies, and even spying on our enemies and stealing technology are just some of the most entertaining aspects of this game .

Most common FAQs when buying Interplanetary Enhanced Edition for PC in digital format:

It is a key that will allow you to download the game Interplanetary Enhanced Edition on your PC from official download platforms.

As of 27/08/2026, in United States, the best price we have found in our selection of online stores that include the key for Interplanetary Enhanced Edition on PC is €1.03.

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 Interplanetary Enhanced Edition 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 Interplanetary Enhanced Edition, 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 48 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 48 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: 2026-08-27 08:04:40

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Interplanetary Enhanced Edition

Is it worth it?

Very Positive 552 reviews on Steam

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What the press says

Invision Community

Overall, Interplanetary is an exceptional game. Great gameplay, lovely looking visuals, even better music and challenging AI. Interplanetary's USP of combining physics, gravity and orbits... Read more

Cubed3

Despite trying to harken back to a simpler and fun time in gaming, Interplanetary: Enhanced Edition adds unnecessary complication to a game that is broken... Read more