To upgrade village stations in Tribes of Midgard, you will need to donate a large amount of souls that you get from various things in the game.
TRIBES OF MIDGARD – Survival 2.0 Crafting Guide and Basic Building Tips
When you get souls, the process of upgrading stations is as follows: walk up to a station, press g, and then the left button to donate the required number of souls.
Each of your stations requires the same amount of souls to upgrade. If you want to know how many souls you need to fully upgrade your stations, check the table below.
Before you can upgrade any of your village stations, however, you must first collect souls through activities such as resource gathering.