Casino games are a popular form of entertainment, but for many players, the goal is not just to have fun, but also to win money. To increase their chances of winning, players need to understand two important concepts: Return to Player (RTP) and volatility. In this article, we will explore what RTP and volatility are, how they are calculated, and how they affect the player’s experience. If you’re looking for a reliable online casino to try your luck, consider visiting Agent spins casino for a wide range of games and transparent RTP information.
RTP is the percentage of wagered money that is returned to players over time. It’s a key factor in determining the house edge, which is the casino’s profit margin. A higher RTP means that players can expect to win more money in the long run, while a lower RTP means that the casino has a higher profit margin. Volatility, on the other hand, measures the risk and reward of a game. A game with high volatility may offer larger payouts, but less frequently, while a game with low volatility may offer smaller payouts, but more frequently.
What is RTP (Return to Player) in Casino Games?
Defining RTP: The Percentage Explained
RTP is usually expressed as a percentage, and it’s calculated based on the amount of money that is wagered on a game and the amount of money that is won. For example, if a game has an RTP of 96%, it means that for every £100 that is wagered, £96 is returned to players as winnings. The remaining £4 is the house edge, which is the casino’s profit margin.

The RTP is typically calculated over a large number of game rounds, known as the sample size. The larger the sample size, the more accurate the RTP is likely to be. Casino games are regularly tested and certified by independent testing agencies, such as eCOGRA, to ensure that their RTP is accurate and fair.
How RTP is Calculated and Verified
The calculation of RTP involves tracking the amount of money that is wagered on a game and the amount of money that is won. This data is then used to calculate the RTP percentage. The RTP is typically calculated over a large number of game rounds, and it’s verified by independent testing agencies to ensure that it’s accurate and fair.
For example, a game with an RTP of 96% may have a sample size of 1 million game rounds. Over these 1 million rounds, the game may have paid out £960,000 in winnings, based on £1,000,000 in wagers. This would result in an RTP of 96%, which is the percentage of wagered money that is returned to players.
Demystifying Volatility (Variance) in Casino Games
Defining Volatility: Low, Medium, and High
Volatility, also known as variance, is a measure of the risk and reward of a game. It’s usually classified as low, medium, or high, and it affects the frequency and size of payouts. A game with low volatility may offer smaller payouts, but more frequently, while a game with high volatility may offer larger payouts, but less frequently.
For example, a game with low volatility may offer a payout of £10 every 10 spins, while a game with high volatility may offer a payout of £100 every 100 spins. The choice of game depends on the player’s risk tolerance and playing style. Players who prefer smaller, more frequent wins may prefer games with low volatility, while players who are willing to take more risk may prefer games with high volatility.
Low Volatility Games: Frequent Small Wins
Games with low volatility are designed to offer smaller, more frequent wins. These games are often preferred by players who are looking for a more predictable and stable gaming experience. Examples of low volatility games include classic slots, such as Starburst, and low-stakes table games, such as blackjack and roulette.
Low volatility games are often characterized by a higher hit frequency, which means that players can expect to win more often, but the payouts are typically smaller. For example, a low volatility slot game may offer a payout of £10 every 10 spins, while a high volatility slot game may offer a payout of £100 every 100 spins.
| Metric | Description | Example | Impact on Player |
|---|---|---|---|
| RTP | Percentage of wagered money returned to players over time. | 96% | Higher RTP means potentially more returns. |
| House Edge | Percentage of wagered money retained by the casino. | 4% (for a game with 96% RTP) | Casino’s profit margin. |
| Sample Size | Number of game rounds used to calculate RTP. | Millions | Larger sample size leads to more accurate RTP. |
| Volatility | Measures the risk and reward of a game. | High/Medium/Low | Affects frequency and size of payouts. |
The Relationship Between RTP and Volatility
How RTP and Volatility Work Together
RTP and volatility are two separate concepts, but they are related. A game with a high RTP may have low volatility, which means that players can expect to win more often, but the payouts are typically smaller. On the other hand, a game with a low RTP may have high volatility, which means that players can expect to win less often, but the payouts are typically larger.

For example, a game with an RTP of 96% and low volatility may offer a payout of £10 every 10 spins, while a game with an RTP of 90% and high volatility may offer a payout of £100 every 100 spins. The choice of game depends on the player’s risk tolerance and playing style.
Can a High RTP Game Be Highly Volatile?
Yes, it’s possible for a game to have a high RTP and high volatility. These games are often referred to as « high-risk, high-reward » games, and they can offer large payouts, but less frequently. Examples of high RTP and high volatility games include progressive jackpot slots, such as Mega Moolah, and high-stakes table games, such as high-limit blackjack and roulette.
High RTP and high volatility games are often preferred by players who are willing to take more risk in order to win larger payouts. However, these games can also result in significant losses if the player is not careful, so it’s essential to set a budget and manage bankroll carefully.
Practical Tips for Applying RTP and Volatility Knowledge
Setting a Budget Based on Volatility
When playing casino games, it’s essential to set a budget based on the volatility of the game. For low volatility games, players can afford to bet smaller amounts, as the payouts are typically smaller and more frequent. For high volatility games, players should bet larger amounts, as the payouts are typically larger and less frequent.
For example, if a player is playing a low volatility slot game with an RTP of 96%, they can afford to bet £10 per spin, as the payouts are typically smaller and more frequent. On the other hand, if a player is playing a high volatility slot game with an RTP of 90%, they should bet £50 per spin, as the payouts are typically larger and less frequent.
FAQ
What is a « good » RTP for a casino game?
A good RTP for a casino game depends on the type of game and the player’s preferences. Generally, a good RTP is considered to be 96% or higher. However, some games, such as progressive jackpot slots, may have a lower RTP, as the jackpot payout is typically much larger than the regular payouts.
Does RTP guarantee I will win money?
No, RTP does not guarantee that a player will win money. RTP is a statistical measure that is calculated over a large number of game rounds, and it’s based on the average payout of the game. In the short term, a player may win more or less than the RTP, depending on their luck and the volatility of the game.