Calyx

Calyx combines real-time strategy with base building. You play as the only remaining occupant of an Avaris Corporation deep-space mining vessel, arriving in orbit around a barren-looking planet. After being frozen for more than a century, you are sent to the surface while the ship’s AI sets out your Ore mining targets. Your goals are to control the planet, fend off the spreading Calyx and find a way home.

Build and defend

You establish a base, build a power network, set up Harvesters and refine Ore to send to orbit in exchange for Credits. Walls and turrets protect your base, while tanks and artillery let you push back against the Calyx. Carefully balance the base’s energy needs so vital defences do not lose power.

Secure rare deposits to improve your mining and military capacity. Booster buildings provide additional power, mining and healing buffs. You can choose where to start and develop different strategies, from building a large force to using a mobile, nimble approach. The different Calyx varieties call for different ways of fighting them.

Research and technology

Protect Data Archives to earn Research Points, then spend them in the tech tree to unlock and upgrade units and buildings. The Inferno flamethrower can set the Calyx alight, while the Unit Workshop lets you manufacture the Goliath, a massive tank with multiple turrets. Hover technology can increase its speed. Orbital technologies give you access to a devastating laser beam fired from orbit.

Protect and power communication arrays to access the corporation’s deep-space network. Scanning Calyx roots reveals more about these hostile lifeforms, and battles bring new, dangerous Calyx variants into view.

Game modes

The Early Access campaign includes a tutorial and 16 maps, with five difficulty levels. It features a tech tree, Research Points, technology unlocks and upgrades for units and buildings, and five Calyx species. The campaign also includes the Liquidator AI.

Skirmish mode offers seven maps and five difficulty levels. You can set the number of Calyx roots, choose starting resources, configure available Ore fields, select your tech level and generate a layout. Share a map seed with friends so you can play the same challenge.