Developer posts and news about this game.
Greetings Calyx players! We're excited to invite you to take an early look at our upcoming Seraph Update, including the Bomber Command building, the Kestrel gunship, the Manticore SAM turret, and the new Volitant and Barrage species of Calyx. The playtest is open now, and we plan
Greetings Calyx players! We’re sharing some new content as we prepare for the next major update to Calyx’s campaign. In the last update we revealed we’re adding airborne Calyx and player units. Today we can reveal some more progress on that work. Barrage Calyx A new species of Ca
Greetings Calyx players! Today we’re sharing some of our progress on the next major update to the game. Prepare for take-off We’re adding airborne Calyx and player units so you can bring the battle to the skies. See below for a sneak peek at some of the new features we’re working
Greetings Calyx players! Calyx v0.2.0.4 – Leviathan Update, Minor Patch Hi everyone! We've got another small patch today, bringing the following changes: Added different models for the different types of marine crawlers Fixed an issue where the Zeus Cannon wasn't available to bui
Greetings Calyx players! Calyx v0.2.0.3 – Leviathan Update Patch We'd like to say a massive thanks to all the players who've given us feedback on the new update via Discord and the Steam Forum. We've now published a patch with the following changes: Re-enabled building on sand Ta
Greetings Calyx players! We're delighted to announce that Calyx v0.2: Leviathan Update is now available to install. This brings the next chapter of the campaign, naval units to build, and a new ocean biome to explore. The Leviathan region A mysterious event has left a region of t
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 Fathom species of Calyx. What's in this playtest? New ocean-based
Hot fix for two small issues: Fix default skirmish seed codes not producing correct layouts Fix challenges missing events
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. Water, water, everywhere… We can now create maps with water
Fix for upgrading buildings past maximum level when using multi-select.
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 see so many of you enjoying the first part of the campaign a
Fixed a rare hang when saving game
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 changes: More forgiving rules for the "lose structures" objective -
More 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 cancelling an Orbital Drop during deployment. Fixed an issue wh
Calyx 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 and you've continued to play skirmishes/challenges, you may ha
Separated 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 allowed) Fix skirmish seeds generating negative values Prevent
Spot 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 objectives
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 mysterious Avaris corporation Tutorial plus 16 maps 5 difficulty lev
Try the new campaign now! You can now install or update the Calyx demo and play the first section of the brand new campaign. Calyx will release into Early Access on Thursday 29th January 2026, but we've uploaded the updated version of the demo today. What's included? Play a secti
We’re excited to announce that the Early Access version of Calyx is coming to Steam on 29th January 2026. This first official release will include: Part one of the campaign Uncover the secrets of the mysterious Avaris Corporation: Tutorial plus 16 maps 5 difficulty levels Tech Tr