> For the complete documentation index, see [llms.txt](https://space-cartels.gitbook.io/space-cartels-3.0-white-paper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://space-cartels.gitbook.io/space-cartels-3.0-white-paper/language-english/base.md).

# Base

<figure><img src="/files/OxgiP3DH6tTqpi7hScVe" alt=""><figcaption></figcaption></figure>

The game starts without having any industrial building. Both construction and expansion of buildings always cost a certain amount of Steel and Copper - the higher the level of expansion, the more it costs.

Each of the buildings in the Base has a very similar layout.

## Production&#x20;

<figure><img src="/files/ipKLZmxjqTG3ojnCq0iM" alt=""><figcaption></figcaption></figure>

At the top, we see the production costs, and at the bottom, we can set the quantity we want to produce.&#x20;

For the building from the screenshot above, you must pay 100 Iron Ore and 20 Uranium to extract 100 units of Steel.&#x20;

*Uranium is a kind of fuel in Space Cartels and will be used in most buildings.*&#x20;

Additionally, "Max Production" tells us that we can extract a maximum of 100 units of steel per turn.

## Upgrades&#x20;

Next to the information about costs and maximum production, we can see Upgrade buttons, which will allow us to upgrade a given building and thus reduce costs or increase production per turn.&#x20;

Each building in our base (except for the Farm) has the possibility to develop two upgrades:

* "Production Cost" upgrade - allowing to reduce extraction costs,&#x20;
* "Max Production" upgrade - allowing to increase production per turn.