  For sustainable growth and profitability, online game companies are
constantly carrying out various events to attract new game users, to maximize
return users, and to minimize churn users in online games. Because minimizing
churn users is the most cost-effective method, many pieces of research are
being conducted on ways to predict and to prevent churns in advance. However,
there is still little research on the validity of event effects. In this study,
we investigate whether game events influence the user churn rate and confirm
the difference in how game users respond to events by character level, item
purchasing frequency and game-playing time band.
