Can I play my created game outside the Unity creator?

I felt this deserved a separate post. Can't seem to find any other question that answers my question so here it is: When you are done creating a game, is there a way to play it outside of the creator or is that only if I publish the game? As I said in my previous question I am using the Unity creator for personal use to create games for me and my brother to play so I was hoping there is a way to like create a copy of the game outside the creator so that he can play the created game on his own computer.