My friends and uno

On this cold Friday/Saturday early morning my friends decided to play a game of uno and I was thinking that this was going to be a normal game but it wasn't. It was full of tricks. I know I was probably over thinking a simple game of uno, but I started to think. What's the purpose of the game? It's to be the first one to lose all of their cards. I started to think of Aristotle's four questions and how the game was brought into existence. I know that I won't find why the game was brought into the world but I know that the purpose from my point of view, was to stimulate competition. Maybe that the purpose of all games is to stimulate competition? But now the question why does it matter who comes first and who's last? Maybe this simple game of uno is me over analyzing way too much but it's interesting.