How to write a EULA

So i’m trying to understand this. In the epic example EULA template , only the product name and licensor would need to be changed? Who is the licensor? my company? Does both the main Epic EULA and the altered example EULA template need to be in a game? Where do these go ? As intro screens or movies? Does this in effect copyright a game ? Or is a game automatically copyrighted? Or in project settings / legal /copyright , what is this section used for?