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Calyx cover art

Game · Studio 568

Calyx

SteamEurope and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom.

A strategy game with a new kind of enemy, Calyx puts you in charge of a space mining outpost, locked in battle against powerful plant-aliens. Build your base, gather resources, assemble your forces, and take on the Calyx.

Before you buy

Redeem on
Steam clientPC: Windows. Needs a free Steam account.
Activates in
Europe and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom.Activates on accounts registered in the EU, EEA, Switzerland and the United Kingdom.Will not activate on accounts registered in North America, Asia, Latin America or Oceania.
You get
A digital activation keyStandard edition. No disc, no box.
Delivery
To your account and by emailDelivered to your account and by email once it is ready. Some orders get a short manual check first.

Trailers and screenshots

01 / 10 Trailer

Calyx

Trailer 1 of 2

About this game

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!

Description, images and details are taken from this product's Steam page.

Details

Developer
Studio 568
Publisher
Studio 568
Released
29 Jan, 2026
Genres
Strategy, Simulation
Runs on
Windows
Activates on
Steam client, Europe and UK
Interface
English, French, Italian, German, Spanish - Spain, Japanese, Korean, Portuguese - Brazil, Russian, Simplified Chinese
  • Single-player
  • Steam Cloud
  • Family Sharing

System requirements

Windows

  • Requires a 64-bit processor and operating system
Calyx system requirements on Windows
ComponentMinimumRecommended
OSWindows 10Windows 10
ProcessorIntel Core i5-3570 or AMD FX-8350Intel Core i5-10400 or AMD Ryzen 5 3600
Memory8 GB RAM12 GB RAM
GraphicsNVIDIA GeForce GTX 1050 Ti, 4 GB or AMD Radeon R9 380X, 4 GBNVIDIA GeForce GTX 1660 Super, 6 GB or AMD Radeon RX 5600 XT, 6 GB
DirectXVersion 11Version 11
Storage4 GB available space4 GB available space

Activating it on Steam client

  1. Open the Steam client and sign in.
  2. Choose Games in the top menu, then Activate a Product on Steam.
  3. Paste the key and confirm. It appears in your library.

The key is listed for the Europe and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom. region. Read how regions work before you buy.

Calyx€26.74