We originally planned to send you to the planet Tau Ceti F in the first quarter of 2026, but we are making many changes and improvements to various aspects of the game. We are doing our best to ensure that Cosminers meets both your and our expectations in terms of quality. This extended the development process of creating Cosminers. It is difficult for us to provide an exact release date at this moment, for now we are planning to make closed and open playtests soon (probably Q2 2026) and to participate in one of the Steam Next Fest with a demo. We will keep you informed about our progress and roadmap. 

If you happen to be in the Boston area, feel free to visit our booth at PAX EAST 2026, which will be held from 26 to 29 March, to see the current state of the game, try Cosminers by yourself and share your thoughts!

Thanks to your feedback at various events and expos, we have decided to introduce many changes in gameplay. Tower defence system which we want to describe closer in this update is one of the many things we have been working, to make Cosminers more enjoyable. Our improved base's defence systems will increase your chances of survival and successful completion of your contract.

The security system has been expanded for better gameplay - we have given you the ability to defend the base in two ways - you must choose which one will be most beneficial for your mission:

The first method is manual control by the player, which allows you to kill monsters more precisely by hitting their weak spots, which causes them to take more damage.

The second way is to give control to an AI module that will operate the turret itself, deciding which enemy is best to attack at any given moment, but with less precision when it comes to attacking weak points. 

Turrets are highly advanced structures designed for various tasks and for eliminating different types of enemies, which is why they differ from each other in many ways. Below is a list of their differences:

• Weapon type - The turrets will have various types of projectiles, including kinetic, energy, electric, and fire. These projectiles will differ from each other in many characteristics and their use on the battlefield.

  

• Range - The range of projectiles fired by turrets also varies. Some rounds can travel long distances to reach a monster, while electric rounds must operate at close range to maintain their powerful effect.

• Energy requirements - Each turret will consume different amounts of energy depending on the technology used - simple structures will consume minimal amounts of energy, while turrets that attack enemies with energy can place a heavy load on your energy reserves. Each turret is an additional point that draws energy from your base, so you will either need to create a secure energy reserve in your base or be forced to have a limited number of security systems. We will leave the planning up to you.

• Resources used - Basic turrets will require raw materials such as Tritanium, which you will use to create ammunition, while more advanced structures will require Crystalite in addition to electricity to generate powerful amounts of energy. Therefore, gather as much as you can and create ammunition, because the monsters on this planet like to surprise you.

• Attack speed - There's not much to explain here. Some turrets can fire simple projectiles at high speeds, but those that use energy will need a moment to recharge after firing before they can fire again.

• Damage dealt - Basic turrets that use regular ammunition deal little damage to monsters on Tau Ceti F, but in the case of the smallest units, this will be enough to protect you. Turrets that use resources from player's storage deal significant damage and are much efficient in killing larger units.

The corporation has decided not to give you access to all the blueprints at the very beginning of your career, so you will unlock the more advanced designs as you progress through the missions.   

Each turret can be upgraded to higher levels, which will significantly improve its basic stats. Unlocking additional plans in the development tree will allow you to customize turrets to suit your needs, e.g. add additional barrels so that the turret can deal more damage, or change the resources used and the effect applied to monsters.

Like any mechanical device, turrets wear out over time and will require maintenance. Keep in mind that placing a turret is only the beginning of its life and its proper operation will consume additional resources and player's attention to ensure its proper functioning.

In summary each turret has its pros and cons, but placing them correctly will allow you to create the perfect defence system. However, you will be responsible for this during your stay on the planet.

What turrets would you like to see in Cosminers, or what else would you improve? Be sure to let us know in the comments!

Thank you for your support and all the messages we received from you. Your commitment is what drives us to continue working on Cosminers! 

– Corporate Command, Cosminers Operations Division

Before sending you to Tau Ceti F, we need to introduce you to your workplace, this will certainly help you successfully complete your mission and return to the surface. In today's lecture, we will talk about the undergrounds – the topics we will discuss include resources, threats, biomes, underground events, and the tools available to help you navigate the dark tunnels.

Tau Ceti F hides a variety of dangerous biomes, where each level of caves tells its own story. These caves change with depth, creating almost separate ecosystems. The highest levels are unstable and full of fragile formations, while deeper down crystals begin to dominate the geology and even emit powerful energy.

The Sandstone Biome is a sandy expanse, where twisted cave labyrinths are filled with towering stalagmites, hanging stalactites, and clusters of crystal bushes and luminescent mushrooms. Frequent earthquakes and unstable rocks make every step deadly dangerous.

This place looks like the inside of a living prism. Light bends and scatters across multilayered crystal formations, illuminating natural chambers and creating an atmosphere that feels more like a dream than a planetary structure. Don't be fooled by this beautiful image, this cave can hide a lot of danger.

Our research indicates that the planet Tau Ceti F has very rich deposits of rare minerals, which ended up or aren't present on Earth. At this point, we have managed to identify the three most common minerals. As you gain experience in mining, it is possible that You will begin to learn about new minerals found in this location.

This is the most common resource found underground. It appears very frequently just below the planet surface, and its deposits are very rich. You can use it to build defence systems, upgrade your base, or craft various items.

As you can see, Tau Ceti F also has resources known on Earth. From what we have observed, gold deposits are rarer than Tritanium and much smaller. You will use it in the production of defence mechanisms and the creation of items in the printer.

Scientists from our laboratories still do not know how it is possible for this plant to grow underground and produce this amazing glowing resource. The crystals will be used in the production of batteries for multitool and other advanced technologies. 

There are various dangers underground, from natural phenomena to monsters that live in the darkness. Be careful, the deeper you dig, the more dangerous your surroundings may become.

We don't fully understand how they appeared in the mines and how they are able to survive there. Individually, they may not be a serious threat, but when they appear in groups, they can pose a powerful danger. They shoot fast electric charges that can kill miner.

These enormous crystals form in random locations, but as with Crystalite, they remain something of a mystery to our scientists. All we know at this point is that if cosminers get too close, they may be electrocuted by the energy contained within the crystal - but don’t worry, they can simply be destroyed, providing you with additional resources.

The planet can be very unpredictable, with truly strange anomalies occurring at random moments. At this point, we don’t know what causes some of them, but we hope that your stay on the planet will provide us with more valuable informations.

Our seismographs installed at the base occasionally record high magnitudes. These are not maximum values, but they can slightly change the environment by collapsing a wall and unlocking previously unexplored areas. Remember that newly discovered places may be an opportunity to find valuable minerals or a threat related to creatures living in the darkness.

When moving around such a large space, it is easy to lose your bearings, but this is where Beacon come in handy. They are the primary source of light underground. You can place them wherever you want, assign them a colour and brightness or use them as markers on the minimap. It will certainly make it easier for you or your colleagues to navigate underground.

Today's training has come to an end. That is all we can tell you at this point. If there are any new instructions, we will certainly inform you about them before you arrive to the planet. 

– Corporate Command, Cosminers Training & Development Division