While exploring, companions will assist their owners in a number of ways, including: scouting for resources and buildings digging up minerals and special items hunting other creatures and marking hazards.Companions will need to be cared for over a long period of time in order to win their trust.They will periodically require food or attention if they are to thrive. Companions will assist their owners during planetary exploration, but have needs of their own.The creature harness has a neural link with the Exosuit, enabling rudimentary translation of your new companion’s thoughts and wishes.Some species are more likely to have certain traits than others, but each creature is unique. Each companion has their own personality, which will influence how they behave and think.Some accessories, such as the torch or mining lasers, will be used by your companion as they explore the planet.
New companion slots are available to be purchased with nanites. You can read more detailed discussion on No Man Sky’s Companions here.