The first 4 hours or so can be a bit rough because it doesn’t hold your hand much considering how big the game is and how much there is to do. I suggest focusing on surviving and following your radio messages for a new game, while crafting all your basic tools from the crafter as you follow the messages. Craft and use that scan tool. And by the time the radio messages run out, you’ll find some cool stuff 😁😁😁

And yes, you can build anywhere! The world is your oyster 🦪