A lot of people got drawn into the industry in its latest boom and found themselves glueing together remote services using an ever-changing collection of heavy frontend frameworks and never experienced actually modeling an application from top to bottom. It doesn't need to be a game, but doing more of the dirty work that "[you] have no idea how to model" andis "more complicated than anything [you]'ve ever seen" can help induct you into a much richer and more cognizant craft practice.