Steam

Calyx

Also known as Calyx, c, calyx

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. With only an out-of-date AI for company, can you survive?

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Last update

13 Jun 2026

Original sources

Latest update

StorePublished 15d ago

Take to the seas and battle the Fathom – the Leviathan Update Playtest is live!

Greetings Calyx players! We're excited to invite you to take an early look at our upcoming Leviathan Update, including a new ocean biome, the Comet and Broadside fighting ships, the Ark naval transport, and the new Fath…

6 changesGameplayMaps

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Latest updates

Update history

Browse past updates and patch notes for this game.

12updates

April 2026
Calyx 0.1.0.4Hot fix for two small issues: Fix default skirmish seed codes not producing correct layouts Fix challenges missing eventsAnnouncementv0.1.030 Apr 2026
Ships Ahoy! Calyx Development Update – April 2026 Greetings Calyx players! As we said back in March, we’re currently working on a larger update to Calyx, and we’re pleased to be able to share some details of that today.…5 changesMapsGameplayPatch notes28 Apr 2026
March 2026
Calyx v0.1.0.3Fix for upgrading buildings past maximum level when using multi-select.Announcementv0.1.012 Mar 2026
Calyx v0.1.0.2 – Isotopes, Modules, Skirmish improvements and more Greetings Calyx players! We’re delighted to share our first larger update since the Early Access launch of Calyx on 29th January. It’s been brilliant to…v0.1.028 changesGameplayMapsStore10 Mar 2026
February 2026
Calyx v0.0.6.6Fixed a rare hang when saving gameAnnouncementv0.0.61 changeFix16 Feb 2026
Calyx v0.0.6.5 update Greetings Calyx players! It's now been 2 weeks since the Early Access launch, and we'd like to once again thank everyone for their feedback and bug reports. This patch includes the following change…v0.0.66 changesFixGameplayPatch notes11 Feb 2026
Calyx v0.0.6.5More forgiving rules for the "lose structures" objective - e.g. you can bulldoze deploying strutures, and we allow upgrading / replacing existing structures. A fix for an issue where your pop cap wasn't returned when ca…Announcementv0.0.65 changesFixGameplay11 Feb 2026
Calyx v0.0.6.4 updateCalyx v0.0.6.4 update Campaign autosave being overwritten We became aware of an issue where your Campaign autosave progress could be overwritten by a save from another mode. If you never made a manual save in Campaign a…Eventv0.0.68 changesGameplayMaps06 Feb 2026
Calyx 0.0.6.4Separated campaign auto saves from skirmish/challenge auto saves Added "Reset All Research" to campaign tech tree Fix for a crash when buildings near map edge are attacked Hide save game in tutorial (where save is not a…Eventv0.0.68 changesGameplayMaps06 Feb 2026
January 2026
Calyx 0.0.6.3Spot fixes: Fixed HUD layout issue Fixed crash when ordering units to the edge of the map Fixed power grid spilling over edge of the map Fixed impossible challenge objectivesEventv0.0.64 changesFixUI/audio30 Jan 2026
Calyx is releasing into Early Access today!Greetings Calyx players! We’re thrilled to announce that the Early Access version of Calyx is now available. This first official version of the game includes: Part one of the campaign: Uncover the secrets of the mysteri…Event6 changesGameplayMaps29 Jan 2026

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