Buy Calyx Steam Key
Calyx Steam Key: compare prices from 6 offers (October 2026)
A Calyx 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 €10.44 (€11.62 with fees, -54%) at Kinguin, Steam Account format · Cheapest official key: €24.99 (no fees) · 6 verified stores, 6 offers in stock · Updated 16min ago.
Gift cards
Steam Key
Prices change depending on the selected payment method.
Final prices with fees
About Calyx
A combination RTS and base builder with a brand new kind of enemy, the Calyx are a group of powerful plant-aliens that, left unchecked, quickly spread to control swathes of the map.
As the only remaining occupant of an Avaris Corporation deep-space mining vessel, you’ve arrived in orbit around a barren-looking planet. While you’re trying to get over being frozen for more than a century, you’re dropped to the surface as the ship’s AI outlines your Ore mining targets.
Build a power network, set up Harvesters and refine Ore before sending it to orbit for Credits. Build walls and turrets to protect your base. Deploy tanks and artillery to push the Calyx back before it gets too strong.
Balance your base’s energy requirements carefully to avoid vital defences being down on power.
Secure rare deposits to improve your mining and military capacity. Connect to booster buildings for additional power, mining and healing buffs.
Will you establish a strong defence, or attack the Calyx before it spreads too far? Dig in and build a massive force, or adopt a mobile and nimble strategy? There are many ways to defeat the different varieties of Calyx. Start your base wherever you like, experiment and develop your styles of play, and learn to cope with different scenarios.
Protect Data Archives to gain Research Points, and use the tech tree to unlock and upgrade more advanced units and buildings. Unlock the Inferno flamethrower and watch the Calyx burn! Build the Unit Workshop and manufacture the Goliath, a massive, multi turret tank, and boost its speed with hover technology. Unlock Orbital technologies and fire a devastating laser beam from orbit.
Protect and power communication arrays to access the corporation’s deep space network. Scan the Calyx roots to learn more about how these hostile lifeforms function. Discover new and dangerous Calyx variants as you battle to gain control of the planet and try to find a way home!
Take on the Early Access campaign:
Tutorial plus 16 maps
5 difficulty levels
Tech Tree
Earn Research Points and unlock new technologies
Upgrade units and buildings
Take on 5 species of Calyx
Watch out for the evil Liquidator AI!
Replay with Skirmish mode:
7 maps
5 difficulty levels
Set the number of Calyx roots
Choose starting resources
Configure available Ore fields
Choose your tech level and generate a layout
Share the seed with friends so you can play the same challenge
Calyx is an Early Access release, and we’d love to hear your thoughts to help shape future development.
Please jump into the Discussion Forum, or join our Discord and let us know what you think!
How much does Calyx for PC cost right now?
Calyx for PC starts at €10.44 (€11.62 with fees) at Kinguin, 54% under the €24.99 (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 €24.99 (no fees) at Steam.
That €10.44 (€11.62 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 6 stores — and thin supply keeps prices steady rather than falling.
Shared account
Steam Key
Steam Gift
Is it worth buying the Steam Key for Calyx now or waiting?
That €24.99 (no fees) key is expensive for what it usually costs.
- Those €24.99 (no fees) are 18% above what it usually costs, measured on the store price.
- Only 2 stores sell the Steam Key, and with that little competition the price barely moves.
- Across the 169 days we have tracked it, it has only been pricier than today on 0 days. The lowest it has ever cost is €11.25.
Worked out from 179 daily records of the Steam Key for Calyx across 2 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 Calyx format should you buy?
With the shared account at Kinguin 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 Steam costs €14.55 (€13.37 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.
The 3 Steam Gift offers are pricier than the key and leave more room for error, because they depend on the region and on Steam friendship.
Can you activate Calyx in US?
All 6 offers are Global, so the code redeems on any account no matter where it was created.
Most common FAQs when buying Calyx for PC in digital format:
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.
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.
Calyx
Is it worth it?
- 87%Steam reviewsVery Positive · 489 reviews
Is it alive?
- Watching now on Twitch
- Live channels
Can I run it?
What the press says
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About the game
Requirements
- Requires a 64-bit processor and operating system
- Windows 10
- Intel Core i5-3570 or AMD FX-8350
- 8 GB RAM
- NVIDIA GeForce GTX 1050 Ti, 4 GB or AMD Radeon R9 380X, 4 GB
- Version 11
- 4 GB available space
- Requires a 64-bit processor and operating system
- Windows 10
- Intel Core i5-10400 or AMD Ryzen 5 3600
- 12 GB RAM
- NVIDIA GeForce GTX 1660 Super, 6 GB or AMD Radeon RX 5600 XT, 6 GB
- Version 11
- 4 GB available space
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