RTP, volatility and paylines are three terms you will often come across when looking at slot games. Knowing what they mean makes it easier to understand how different games are set up.
If you have ever looked at a slot game and wondered what terms such as RTP or volatility actually mean, you are certainly not alone. There is more to a slot than spinning the reels and waiting to see which symbols land. Different games use different combinations of reels, symbols, paylines and special features and these can all affect how the game works. Once you understand these basics, slot terminology becomes much easier to follow.
What Does RTP Mean?
RTP stands for return to player. You will normally see it shown as a percentage, such as 95%, 96% or 97%. The figure represents the theoretical amount that a slot is designed to return over a very large number of plays.
To put that into simple terms, a slot with an RTP of 96% has a theoretical return of £96 for every £100 wagered over a huge number of game rounds. It does not mean that someone playing £100 will receive £96 back during their own session. Individual results can be very different from the published figure.
This is because RTP is a long-term mathematical measurement. It is not a promise about what will happen during a particular playing session or on a specific spin.
When comparing online slots, RTP can therefore be useful as one piece of information about how a game has been designed. It is best considered alongside other details, including volatility and the game’s paytable.
Getting to Grips with Volatility
Volatility is another term worth understanding. In simple terms, it describes the way winning combinations and potential payouts are distributed within a slot.
Games with lower volatility tend to have winning combinations appearing more regularly, although the individual wins may be smaller. Higher-volatility games can have less frequent winning combinations, with the possibility of larger individual payouts. Medium volatility generally falls somewhere between these two descriptions.
That does not mean volatility can tell you what will happen on your next spin. Every spin is a separate event, so previous results do not determine the next one.
Instead, volatility gives you an idea of the game’s overall mathematical character. Looking at it can help explain why two slots with similar RTP figures may feel quite different during play.
How Do Paylines Work?
Paylines are a central part of many slot games. Put simply, a payline is a particular route across the reels where matching symbols can create a winning combination.
Older-style slots often used a small number of straightforward horizontal lines. Modern games can be much more varied. A slot might have lines that move diagonally, zigzag across the reels or follow other patterns.
Imagine a five-reel slot with a line running across the middle of each reel. If the required symbols land along that route, the combination may qualify for a payout. Another line could follow a different path and create a separate winning combination.
The number of paylines can also vary considerably. Some games let you choose how many lines are active, while others automatically use all available paylines with every spin. Some games use systems based on clusters or ways to win. These formats work differently, so checking the game’s rules is a sensible way to see exactly what counts as a winning combination.
Making Sense of the Paytable
The paytable is probably the most useful place to look when you want to understand a particular slot. It normally explains what each symbol is worth and how many matching symbols are needed for a win.
It may also provide information about wilds, scatters and bonus features. A wild symbol can replace certain other symbols in a combination, depending on the rules. Scatter symbols can have their own functions and may activate features such as free spins.
Other games include expanding symbols, multipliers or additional bonus rounds. These features can make one slot work quite differently from another, even when both games use the same basic reel format.
Looking at the Numbers Together
When choosing between online slots, it can be useful to look at several pieces of information rather than concentrating on just one. RTP explains the theoretical long-term return, while volatility gives an indication of how potential wins are distributed. Paylines then show how symbol combinations are formed.
There are other details to consider, too. You might prefer a particular theme, reel layout or bonus feature, while the available stake levels can also be relevant to your choice of game.
Ultimately, these figures and features are there to explain how a slot has been constructed. Once you know what RTP, volatility and paylines mean, it becomes much easier to read a game’s information and understand what you are looking at.
