Players leave games. According to Marc Robinson’s 2013 GDC talk, “On average, less than 40% of players return to a free-to-play game after just one session.”
And as you know, our first duty as professional game designers is to create compelling experiences. We make games for the players to enjoy and play! If they leave our games too fast and too often, we have failed.
Thinking of the reasons why players are leaving your game is a great opportunity to put yourself in their shoes. Not only that, your financial success largely depends on the size and fidelity of your audience. In particular if you are monetizing your game with in-app purchases.