
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 With only an out-of-date AI for company, can you survive?
Modeled estimate, not a reported figure. How we estimate →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0.57/day in the week to Sep 9 → 1/day in the week after.
Reviews, worldwide (the counter carries no country): 1.29/day in the week to Jul 24 → 1.86/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 25 chart moves that followed a price cut of more than 20% went a median of 10 places towards #1, and the 2,413 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About

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!

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!
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!
Engagement
Reviews
Themes across 94 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Love the game concept and the aesthetics but one glaring issue exists. The balance is whack when it comes to the Artillery Calyx. On mission 5 you already get 2 of them on the map and they just destroy any tanks in like 2~3 shots on normal difficulty. Even the bulky tank. At this point you basically have no effective way of repairing and the only repair option essentially repairs so slow you'd be better off replacing the entire unit. They evolve too fast and deal too much damage and outrange any turret (makes sense, if not for how strong they are vs all your tanks and how fast they shoot). By 10 minutes in they are already max level with dozens of almost unapproachable artillery growths which is intensified in difficulty due to the growth speed of the creep of of a level 3 Calyx. Will ammend my review when this gets addressed.
TL:DR good game but Ai needs balancing Ok, im going to give this a positive review because I want to support the dev, and I am enjoying the game, but I do feel the game needs a LITTLE tweaking. Mainly, the enemy AI faction. Not the plant faction. My main gripe is that the Ai cheats. Hard. It has no harvester, and you can destroy its power systems, yet it will pump out an ENDLESS supply of units. Every few minutes, 10s of units will flow out of its factories. There is no build time. Maybe its to keep you on your toes? Aside from that, the game is fun and having the research/upgrade tree keeps you coming back for more. Playing through an old mission with new tech is really enjoyable.
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Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English, French, Italian, German, Spanish - Spain, Japanese, Korean, Portuguese - Brazil, Russian, Simplified Chinese
Hours played at review time, across 94 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
You are the sole occupant of a deep-space mining outpost and my only neighbours are murderous plants. This is basically Dune 2 and C&C for people who peaked in 1996, except the enemy is an angry garden. You build your power grid, you set up harvesters and refineries, you feel smug about your beautiful base layout, and then the Calyx turns up and composts everything you love. Artillery fixes most arguments. Research fixes the rest. For an Early Access game made by a tiny studio it's solid. No crashes, no nonsense, 16 campaign maps plus skirmish and challenge modes, and a tech tree that keeps whispering "one more upgrade" at 1am. My lawn at home is now knee-high because I've been too busy fighting fictional vegetation to mow actual vegetation. 9/10 would neglect real plants to shell fake plants again.
I Absolutely Love this game! If you're a Fan of oldskl C&C or Creeper World... You'll Love this game!!!! I've just purchased the game and played the first 5-6 levels, but to be crystal-clear, I was previously providing feedback within the "Play-tests" that I signed upto, pre-Early Access launch! This is why i've waited a while to see what the launch intaled and now i've dived in. So my feedback here, maybe a tad-squewed, as I was already familiar with most of the game mechanics etc due to being a "Play-Tester"... That being said... This game Continues to be Amazing! I waited awhile after the launch before buying & playing it... It seems the EA release has had an update or two... So I bit the bullet and made my purchase and at the time of this review: I've played through the first 5-6 levels! This game Sooo Reminds me of the old-skl C&C:Tiberiun Sun days... PVE-RTS @ It's finest if you ask me! This game is like a mating of(cross between) My two Ultimate RTS favourites: 'Command & Conquer: Tiberian Sun' & 'Creeper World' I for one Love it! -=-=-=-=-=-=- To the Devs: I Thank you for not using any A.I to voice the campaign storyline! Personally I prefer reading text, than having an A.I voice over... So Thank you for NOT jumping on the disliked/hated A.I bandwagon! That being said, I think you'll get much more engagement if you can afford to hire a couple of real Voice actors to provide you with Voice-Over for the Campaign storyline. If you're waiting until the game is at v1.0, before doing so... that is also understandable, as highering real VO ppl is expensive. Ultimately I give this game a 9/10 in It's current state... Adding real (human Voiced) VO for the Campaign messages, would push it upto a 10/10! Imo! Fore anyone who enjoys PVE-RTS... You'll Love this game!
You're supposed to outrange the growing enemy, not being VASTLY outranged by it. I just don't understand the purpose of this game.
如果你刷到这个评论我建议你不要购买这个游戏,开发者完全没有玩过游戏,糟糕的单位寻路一堆单位挤在一起然后就开始鬼畜不开火,导致一堆单位莫名其妙死亡,开发者压根不关注游戏体验性,非常的差,对面有迫击炮伤害高,经济并不是无限的,巨难打一直在拉锯,拉锯也就算了一堆建筑和单位挤在一起结果是单位不开火搞的人非常高血压,这种狭窄区域的游戏就不适合给载具加碰撞和阵型,一移动一堆单位就跑去送死,强行上压力。我只能说作者就是个傻Ⅹ。玩的人血压飙升
It feels like it downgrades each time I come back to play... Upgrade system is now a tedium and quite poor, yet plays a large part in the game (or it should but not upgrading and just rushing more of everything seems to work better now). Any semblance of upgrades for range in units or defences seemed to have disappeared whilst my enemy continued to have what seemed like 'true' upgraded turrets, making for a very one sided game of attrition with their limitless spam. Artillery are still pathetic, even more with the upgrades as they are now. I don't understand the direction intended.
I like the game, but right now, I cannot recommend it. All the core mechanics are fine, but the game feels so slow and tedious. It seems like the developer felt that the maps were too small, so instead of increasing the map size, your units were slowed down to make the map "feel" bigger. Problem: This has been only applied to your units. The enemy creeper-vines and units seems to be kept their original speed. This, combined with some horrendous pathfinding of your units, leads to a lot of frustration. You will lose units, because either your anti-air units decided to move, instead of shooting down the incoming projectile, or your tank decided to stop and slowly turn instead of driving backwards. I hope this will be addressed before the full release, because all the elements are there for a fun game.
Firstly - this game may be expensive for the content included to date. With that being said, what is here is absolutely fantastic. Had a great time strategising and pushing back the calyx. I think if they keep adding more content it will be amazing
Very cool, it scratches a very specific itch I've had as long as I've been playing games, going back to being a kid playing with browser-based zombie infection/game of life/falling sand games, to see something organic spread exponentially within a gameplay space and try to influence it. Truly tactically satisfying, with long-term strategic lessons to be learned as you research additional upgrades, with a lot of flexibility in your initial technique in the race to gain control of territory and resources before you lose the initiative. It sounds stressful but you have pause and speed controls so you don't need to be overwhelmed. You do, however, need to learn the behaviours of the Calyx and have a plan to deal with it - it will steamroll you if you do not secure the resources you need to tech up and hold your ground. Eagerly monitoring ongoing early access development =)
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Active players
Estimated daily and monthly active players (DAU/MAU) modeled from peak concurrency.
Players by region
Where this game's players are, estimated from review languages.
Players also reviewed
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