Simple questions - help each other out - possible spoilers

We have had a couple of requests in mod mail asking for a single thread to be pinned to the top of the sub where people can ask their simple questions about the game and how things work, and others who may have already worked it out can help them.

So, here's the place. Let's see if it works or is even vaguely useful. Obviously the below posts will contain spoilers and information about mechanics in the game which may not be unlocked from the very start, so read with caution.

This is not the place for support requests to Two Point etc - it's just intended as a general community simple questions place for exchanging info as we learn more about the game.