Chance-based games keep players engaged by mixing uncertainty with probability....

https://andressinspiringthoughtss.theglensecret.com/what-does-uncertainty-do-to-your-brain-when-you-are-waiting-for-a-result

Chance-based games keep players engaged by mixing uncertainty with probability. The unpredictability sparks anticipation, while players form expectations about possible outcomes. This balance creates a dynamic experience where every round feels fresh