In mobile gaming, success isn't determined by design alone. Behind every daily login, real-time battle, or guild chat lies a web of player interactions. These connections form the social backbone of a game, shaping user experience and retention. But how can developers systematically monitor and improve these interactions? The answer lies in Social Network Analysis (SNA), a methodology that reveals how users connect, communicate, and influence each other inside game environments. Drawing from the academic work of Seok et al. (2021), this article breaks down the fundamentals of using SNA in mobile gaming.