What is Slot Volatility?

The Slot Volatility Index (VI) is commonly used to measure the risk level of a game. Simply put, it reflects the relationship between win frequency and payout size. High-VI slots usually offer very high payouts. Low-VI slots tend to have higher win rates, but the payouts are typically lower.

Similar to Return to Player (RTP), Volatility Index (VI) is one of the two most important factors to consider when playing real-money slots. It not only affects the potential winnings, but also significantly shapes the overall player experience.

How to Calculate Slot Volatility

To calculate volatility, game developers typically run simulations of N game rounds and use confidence intervals along with RTP to determine the volatility index. For players, the following factors can be used to roughly estimate a slot game's volatility:

1. Use the Paytable: By comparing the payout values of winning combinations, you can easily identify high-volatility games. For example, if the payouts for 3, 4, and 5 symbol combinations are around 3–5 times the bet, the slot is likely medium or low volatility.
2. Check the Top Prize: If the game features a massive jackpot, it’s usually considered medium to high volatility.
3. Try the Free Version: Test the demo version and observe the win frequency to help estimate the volatility level.

High Volatility Online Slot Games

High volatility means high risk and low win frequency, but the potential payouts can be massive if you hit a lucky streak.

Medium Volatility Online Slot Games

Medium volatility slots are very popular because the risk is more manageable, and the win frequency is relatively high.

Low Volatility Online Slot Games

Low volatility slots are ideal for casual play. If you're just looking to pass the time, this is the perfect choice.