game opens zoomed in when built

Ok guys this is probably a realllyyy simple question, but since this is my first game with unity I don't have any idea how to proceed so plz lend a hand to the less capable members of the community :p I am making a game and I have played around with the camera (scale is still 1,1 though). When I build the game (PC), and I open it, it shows zoomed in on a certain part of the camera view, although in the unity editor game view it displays everything. I think it's a matter of resolution but I have no idea what needs to be done or what I am doing wrong. I would really appreciate a simple and step-by-step explanation and solution :)