We're thrilled to announce that Calyx v0.2: The Leviathan Update is now available! 🚢 👏 Build your fleet, navigate the sea and defeat the Fathom! Check out all the details here: store.steampowered.com/news/app/321...

Take to the seas 🚢 and battle the Fathom! Calyx's Leviathan Update Playtest is now live. 👏 Request access on the Calyx Steam page – read all about it here: store.steampowered.com/news/app/321...

Ships Ahoy! Water and ships are coming to Calyx. 🌊 🚢 Read all the details in our Steam news post: steamcommunity.com/games/321185...

Calyx v0.1.0.2 update – Isotopes, Modules, Skirmish improvements and more! 👏 Read about it on Steam here: store.steampowered.com/news/app/321...

Here is my guide to help you get into Calyx and its unusual gameplay as it launches on Steam into Early Access today with many campaign missions, challenges and skirmish: youtu.be/WojSdAo6KSQ

Base Building & Campaign Guide on Calyx! Learn how to fight enemies and manage the economy in 2026

YouTube video by perafilozof

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Calyx – our indie RTS & Basebuilder where you fight giant alien plants 🌱 is now available in Early Access! 😊 🚀 Check it out on Steam and try the free demo: store.steampowered.com/news/app/321...

Start the Calyx campaign before Thursday's release.🌱Install the updated demo now! 👏https://store.steampowered.com/news/app/3211850/view/530995512961141915

Check out (and please share) the Calyx Early Access trailer 😊 www.youtube.com/watch?v=gNxk...

Take on the Calyx – Coming to Steam Early Access: 29th January 2026

YouTube video by Studio 568

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We're delighted to announce that Calyx is releasing to Steam Early Access on Thursday 29th January! 👏 Get all the info here: store.steampowered.com/news/app/321...

The first ever Calyx campaign playtest is now open. 👏 Get the info on how to jump in here! store.steampowered.com/news/app/321...

We're conducting a limited playtest for the Calyx campaign from Friday 9 Jan to end of Monday 12 Jan. You can go the Calyx Steam page now and hit the button in the image to request access. It's limited to 1000 places, so jump in quick if you'd like to play! 🙂🌱 store.steampowered.com/app/3211850/...

The Calyx campaign is coming! 👏 Read our latest dev update for all the info. store.steampowered.com/news/app/321...

Calyx will be part of Steam's Next Fest – starting 6pm UK today and running for a week. A great time to check out the demo if you haven't already played (and like the idea of fighting giant alien plants)! #steamnextfest 👏 store.steampowered.com/sale/nextfest

Sandstorms, upgradeable units and more lasers! 🔥We're pleased to say that v3 of the Calyx Demo is now live. Update now to play the new features. Check our news article on Steam for more info: store.steampowered.com/news/app/321...

We're doing a short playtest for the Calyx Demo v3 update. You can join now. See this post on our Discord for all the info! 🙂🌱https://discord.com/channels/1171457109737607260/1378041396782567544/1421160233593737336

We’re stoked to say that over 60,000 of you now have the Calyx Demo installed. 🎉 Check out our update post on Steam to find out what we're working on right now. 🙂 🌱 store.steampowered.com/news/app/321...

We're delighted to announce version 2 of the Calyx Demo is now live, in 10 languages. Huge thanks to all the players who gave feedback during the playtest! 🙂 Our plant-fighting, base-building RTS-fest continues to evolve. We hope you enjoy the new features! 🌱 www.youtube.com/watch?v=MiLD...

Calyx Demo v2 - Official Trailer - Battle an overwhelming alien organism. Demo on Steam (PC).

YouTube video by Studio 568

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The Calyx Demo v2 playtest is now live! If you already requested access, you should now have the "Calyx Playtest" product in your Steam Library. To request access now, visit the main Calyx Steam page and hit the button!🙂 store.steampowered.com/app/3211850/...

We've set up a Discord server so we can communicate during the upcoming Calyx playtest. Join here: discord.gg/EdNejFX8kn 🙂

A first look at the Bastion (Calyxa Castellum). This tough new Calyx rains down fire on any unit that strays into range. See more sneaky preview GIFs in our latest Steam news post: steamcommunity.com/games/321185...

📣 Calyx Demo Update Playtest! Sign up now on the Calyx Steam Page: store.steampowered.com/app/3211850/... When the playtest opens, try out new features like 2 new species of Calyx, Challenge Mode with 5 new maps, Booster Modules, Harvesting and loads of QOL features. Exciting! 🙃

More than 35,000 of you have now added the @CalyxGame Demo to your library! Huge thanks to everyone for your suggestions and feedback. Here's an update on what we’re planning next! 🙂 store.steampowered.com/news/app/321...

@chrislivingston.bsky.social Getting in touch about Calyx, our RTS / Basebuilder with giant alien plants. Our demo is currently top 5 on Steam. Would be fab if you / @pcgamer.com could take a look. Steam: store.steampowered.com/app/3211850/... Press stuff: drive.google.com/drive/folder... Thanks! 🙂

Calyx on Steam

A strategy game with a new kind of enemy, Calyx puts you in charge of a space mining outpost, locked in battle with an overwhelming alien organism. Build your base, gather resources, assemble your for...

store.steampowered.com

Calyx is our RTS / Basebuilder with a new kind of enemy, overwhelming alien plants. Wishlist / play the demo on Steam now: store.steampowered.com/app/3211850/...

@cardy.bsky.social Hey Simon - getting in touch about Calyx, our RTS / Basebuilder where the enemies are giant alien plants. Our demo is currently in the top 5 on Steam. Would be amazing if you / @ign.com could take a look / cover if you like it 🙂. Steam page: store.steampowered.com/app/3211850/...

Calyx on Steam

A strategy game with a new kind of enemy, Calyx puts you in charge of a space mining outpost, locked in battle with an overwhelming alien organism. Build your base, gather resources, assemble your for...

store.steampowered.com

@clert.bsky.social Calyx is our RTS / Basebuilder where giant alien plants are the enemy. Currently in top 5 demos on Steam - would be amazing if you / @eurogamer.bsky.social could take a look - press release & assets here: drive.google.com/drive/folder...

We added Skirmish to the @CalyxGame Demo. Note this is not us responding to everyone's excellent feedback yet - this is a small feature that wasn't quite ready when we launched the demo on Friday: store.steampowered.com/news/app/321...

Calyx - Calyx Demo v0.0.2.3 | Skirmish - Steam News

Skirmish allows you to configure options before playing the demo map.

store.steampowered.com

Hello Bluesky crew. Sorry we've been silent up to now - things have been a bit hectic with the demo launch. The good news is there are lots of people playing and giving us excellent feedback. 🙂