- There’s something in the air! Calyx development update – August 2026 - 27 August 2026
Greetings Calyx players!Today we’re sharing some of our progress on the next major update to the game. Prepare for take-offWe’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 on.Volitant CalyxA new species of Calyx that hatches two flying bug types, one that attacks with a spike of electrical energy, and one that explodes close to its target.Bomber CommandBuild bombers and dispatch them to carry out raids on a target.KestrelA light and fast hovering gunship armed with machine guns.ManticoreA wide-range surface-to-air missile turret.We’re currently working hard on building out and balancing these new air systems, and it’s our aim to have you try them out in a future playtest. In the meantime you can stay in touch via the the Studio 568 Discord.Thanks for your continued support! John, M…
- Calyx v0.2.0.4 – Leviathan Update, minor patch - 8 July 2026
Greetings Calyx players!Calyx v0.2.0.4 – Leviathan Update, Minor PatchHi everyone! We've got another small patch today, bringing the following changes:Added different models for the different types of marine crawlersFixed an issue where the Zeus Cannon wasn't available to build in the Bastion challenge mapFixed missing sound on upgraded machine gun turretsFixed a bug where adjusting the gamma value in the options didn't persist across sessionsSilenced a rogue module shut down sound effect that was sometimes heard when starting a skirmishAdded missing collision to a rock that appears in various water mapsAs always, the #bug-reports channel in our Discord is the best place to report issues.Thanks for your support! Cheers,John, Mark and Phil 🙂
- Calyx v0.2.0.3 – Leviathan Update patch - 7 July 2026
Greetings Calyx players!Calyx v0.2.0.3 – Leviathan Update PatchWe'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 sandTanks can now knock down treesLimited the number of marine crawlers that can spawn in very large maps (like Nexus)Added more generous ore deposits to some of the new campaign maps where resources were a little tightAdded a message in the first map where marine crawlers are encountered, warning players to build wallsAdded some extra power booster modules to the new campaign mapsNaval units are cheaperNaval units have additional healthThe game no longer automatically pauses when viewing upgrade detailsFixed an issue where the Isotope Reactor was missing from the build menu in some mapsFixed an issue where the Repair butt…
- Assemble your fleet! Calyx v0.2: The Leviathan Update is now available - 3 July 2026
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 regionA mysterious event has left a region of the planet flooded, and has released a new species of Calyx into the wild.Build the Shipyard and assemble your fleetPlace a Shipyard at the water’s edge and start building naval craft. Build the Naval Workshop to unlock upgrades and build the powerful Broadside battleship.The Comet gunshipThe Ark naval transportThe Broadside battleshipTake on the FathomThis new waterborne Calyx grows in a mesh pattern that blocks the progress of your ships. It fires underwater weapons at your naval units, while also releasing new super-strength amphibious crawlers that assault your beaches.An old enemy returnsThere’s a strange navy…
- Take to the seas and battle the Fathom – the Leviathan Update Playtest is live! - 12 June 2026
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 maps4 challenge maps which will form part of the next chapter of the Calyx campaign. The maps are in a newly-discovered region where an ocean has formed.Naval units and buildingsBuild the Shipyard, and manufacture the Comet gunship, the Broadside battleship and the Ark transporter.Construct the Naval Workshop and upgrade your fleet’s capabilities.The Fathom CalyxA new species of Calyx that inhabits the ocean, the Fathom grows in a mesh that obstructs the progress of your ships. It grows two kinds of node, a ranged one similar to the Tormentor, and a node that spawns a new species of marine crawlers.How do I access…
- Calyx 0.1.0.4 - 30 April 2026
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 - 28 April 2026
Ships Ahoy! Calyx Development Update – April 2026Greetings 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 and islands.ShipyardA new building that allows you to build ships and transports.CometA light and fast boat. Best against weaker enemies, or supporting stronger units.ArkTransports land-based units across water.BroadsideHas large, long-range weapons, effective against targets on land or water.Naval WorkshopA facility to unlock and upgrade naval units.We’re currently working hard on building out and balancing the water based systems. In the meantime you can stay in touch via the Studio 568 Discord.Thanks for your support! John, Mark & Phil, Studio 568 🙂
- Calyx v0.1.0.3 - 12 March 2026
Fix for upgrading buildings past maximum level when using multi-select.
- Calyx v0.1.0.2 – Isotopes, Modules, Skirmish improvements and more - 10 March 2026
Calyx v0.1.0.2 – Isotopes, Modules, Skirmish improvements and moreGreetings 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 and giving us your feedback via Discord. Changes include: Do more with IsotopesIsotope Reactor Place it on an Isotope patch, connect, and start generating power.Isotope Silo Isotopes are now stored separately to Ore.3 new modules Artillery Module Connect this one to your power grid and the long range mortar on top will spring into life.Range Boost Module Boosts all weapon ranges when connected to the grid. Calyx Suppressor Module Power this to kill and suppress nearby spreading Calyx. Skirmish tweaks Added 9 Challenge maps to Skirmish. Modules are now randomised in Skirmish maps. Removed mission timers from Skirmis…
- Calyx v0.0.6.6 - 16 February 2026
Fixed a rare hang when saving game
- Calyx v0.0.6.5 update - 11 February 2026
Calyx v0.0.6.5 updateGreetings 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 - e.g. you can bulldoze deploying structures, 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 where the tick on the build menu wouldn't disappear when a "build-once" building was destroyed.The copy feature no longer allows duplication of levelled up buildings.A fix for an issue where it was possible to replace a Liquidator wall with your own turret.Fix for a rare crash when selecting a building to build.When an Ore Transport is is upgraded or bulldozed, its resources are now returned.Refiner…
- Calyx v0.0.6.5 - 11 February 2026
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 where the tick on the build menu wouldn't disappear when a "build-once" building was destroyed. The copy feature no longer allows duplication of levelled up buildings. A fix for an issue where it was possible to replace a Liquidator wall with your own turret. Fix for a rare crash when selecting a building to build. When an Ore Transport is is upgraded or bulldozed, its resources are now returned. Refinery availability is now monitored while a Harvester is driving or waiting off-ramp. Command upgrades should not have been free - now fixed. Changes to the tech tree reset function. It now doesn't cancel free technolo…
- Calyx v0.0.6.4 update - 6 February 2026
Calyx v0.0.6.4 updateCampaign autosave being overwrittenWe 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 have lost your campaign progress. Sorry about this.There's a fix in this update (see the changes below), and we've created a group of saves for various stages of the campaign, in case that helps you to get up and running again. https://drive.google.com/drive/folders/1a76ME4-2YYNTU4Dr5HK_txiFrmQwf36K?usp=sharingv0.0.6.4 changes- 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 orbital…
- Calyx 0.0.6.4 - 6 February 2026
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 orbital drop on unreachable areas Fix for auto save stalling on long-running games Key hints panel is shown by default on first run Balance units built when multiple factories are selected Time stamps on save games should now be in local time Made push scroll more permissive Removed collision from bushes (it was blocking some passes) Reduced objective to 64 units active on "Winding Up" Fix for focus getting lost after saving game Challenges should not have had difficulty options - now removed Upgraded buildings count towards objectives Fix for smoke being invisible from some angles Show plant sprouts on mini-map
- Calyx 0.0.6.3 - 30 January 2026
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
- Calyx is releasing into Early Access today! - 29 January 2026
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 corporationTutorial plus 16 maps 5 difficulty levelsTake on 5 species of CalyxWatch out for the evil Liquidator AI!Tech Tree: Earn Research PointsUnlock new technologiesUpgrade units and buildingsSkirmish:7 maps5 difficulty levelsSet the number of Calyx rootsChoose starting resourcesConfigure available Ore fieldsChoose your tech level and generate a layoutShare the seed with friends so you can play the same challengeIf you’ve played any of the pre-release demos, you’ll encounter lots of other updates, including a new volcanic biome, improved VFX, more dramatic lighting and the ability to export your end of map summary as a GIF.Why Early Access?We’re a small team, a…
- Start the Calyx campaign before release – play the updated demo now! - 27 January 2026
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 section of the campaign - your save will transfer when you get the full game.Try out 3 Skirmish maps.If you’ve played any of the pre-release demos, you’ll encounter lots of updates, including attack-move, improved VFX, more dramatic lighting and the ability to export your end of map summary as a GIF.The previous demo will still be available on the demov3 branch.Thanks for your support!More than 110,000 players have now installed the Calyx Demo, which frankly blows our minds. We can’t wait to hear what you think of this first look at the campaign. Thanks! John, Mark & Phil ːsteamhappyː
- Calyx will release into Early Access on 29th January 2026 - 15 January 2026
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 campaignUncover the secrets of the mysterious Avaris Corporation:Tutorial plus 16 maps 5 difficulty levelsTech TreeEarn Research PointsUnlock new technologiesUpgrade units and buildingsTake on 5 species of CalyxWatch out for the evil Liquidator AI!Skirmish7 maps5 difficulty levelsSet the number of Calyx rootsChoose starting resourcesConfigure available Ore fieldsChoose your tech level and generate a layoutShare the seed with friends so you can play the same challengeIf you’ve played any of the pre-release demos, you’ll encounter lots of other updates, including a new volcanic biome, improved VFX, more dramatic lighting and the ability to export your end of map summary as a GIF.Why Early Access?We’re a small team, and we’ve work…
- The Calyx Campaign playtest is now open! - 9 January 2026
Jump in now for a first look!We're excited to invite you to play the first section of the upcoming Calyx Early Access campaign. This playtest, and the survey is in English only. The build will be available to play until 18:00 UK on Monday 12th January.If you've already requested accessYou should see "Calyx Playtest" in your Steam library.If you still want to request accessVisit the Calyx Steam Page, scroll down and hit the “Request Access” button. You should then see Calyx Playtest in your Steam library. What's in this playtest?A section of the Calyx campaign, playable for the first time. 5 difficulty levels.The new Tech Tree – with unit, building and mechanical upgrades.If you’ve played the pre-release demo, you’ll encounter lots of other updates, including a new volcanic biome, improved VFX, more dramatic lighting and the ability to export your end of map summary as a GIF.Please fill…
- Campaign progress – December dev update - 1 December 2025
Greetings Calyx players!We’re now working hard on the Early Access release of Calyx. Here’s an update on some of the new content that’s coming.CampaignWe continue the story of the demo, as you and your empathy deficient AI attempt to contact the Avaris Corporation network. Build a communications array and keep the Calyx at bay for long enough to power it up and establish a comms link. Let’s see if those desk jockeys at Avaris HQ are paying attention. All new mapsWe’re planning an initial 15 maps as part of the Early Access release, some of which take place in a new volcanic biome. Tech treeYou can now gain Research Points by achieving objectives, and protecting Data Archives on the planet’s surface. You can spend those points in the tech tree to unlock upgrades. More, better upgradesYou can now upgrade buildings as well as units. Upgraded units and buildings have visual upgrades like mo…
