Slots include volatility tiers: reduced for constant tiny wins, high for uncommon success
https://www.mediafire.com/file/01po6jsn65ypz6n/pdf-53080-54014.pdf/file
Slots include volatility rates: reduced for frequent small success, high for rare success. Match your state of mind and money to the math, and usage attributes like hold-and-spin or megaways for dynamic gameplay.