Chance-based games captivate players by combining uncertainty with probability,...

https://blogfreely.net/teresa-long85/what-does-uncertainty-do-to-your-brain-when-you-are-waiting-for-a-result

Chance-based games captivate players by combining uncertainty with probability, creating a dynamic sense of anticipation. As players engage, they form expectations about outcomes, which keeps the experience interesting and mentally stimulating