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Casino · Slots · Updated

Online slots: how the reels pay out.

An online slot uses a random number generator to pick the symbols on every spin. Over the long run most slots pay back 94% to 97% of what is staked, which is their RTP. How often they pay depends on their volatility. This guide explains both, plus paylines, free spins and jackpots.

Slots at a glance

Slot types
6
Typical RTP
94% to 97%
One spin
A few seconds
Skill needed
None
Plays on
Phone & desktop

Key takeaways

  1. 1A random number generator picks the symbols on every spin.
  2. 2RTP is usually 94% to 97%. A 96% slot keeps about 4% of stakes over the long run.
  3. 3High-volatility slots pay less often, but pay more when they do.
  4. 4Nothing beats a slot, so pick the RTP, volatility and stake before you play.

In every game

What you get at every slot

  • RTP on the info screen

    Most slots list their return to player in the game's info or paytable screen.

  • Free spins and features

    Wilds, scatters, multipliers and bonus rounds come built into most games.

  • One balance

    Slots use the same King Exchange balance as cricket and the live casino.

  • Phone or desktop

    Play in the browser on Android, iPhone or a computer.

Slot types

Six kinds of slot, explained

They all run on the same random number generator. What changes is the reel layout, how wins are counted and how big the swings are.

  • Classic slots

    Three reels and a handful of paylines, built like the old fruit machines. Few features, so they're easy to follow.

    Typical RTP
    95% to 97%
    Volatility
    Low to medium
  • Video slots

    Five reels, a theme and bonus rounds. This is the most common kind of slot, and most of the lobby falls into it.

    Typical RTP
    94% to 97%
    Volatility
    Any
  • Megaways

    The height of each reel changes on every spin, so the number of ways to win changes too, up to 117,649. Usually high volatility.

    Typical RTP
    95% to 96.5%
    Volatility
    High
  • Cluster pays

    Wins come from groups of matching symbols touching each other. Winning symbols disappear and new ones drop in, which can set off another win.

    Typical RTP
    95% to 97%
    Volatility
    Medium to high
  • Progressive jackpots

    A small part of every bet goes into a jackpot that keeps growing until someone wins it. The base game's RTP is lower to pay for the pot.

    Typical RTP
    88% to 94%
    Volatility
    High
  • Bonus buy

    Pay a fixed price, often around 100 times your stake, to go straight into the free spins round instead of waiting for it to trigger.

    Typical RTP
    Close to the base game
    Volatility
    High

Slot types compared

Six slot types compared by layout, typical RTP, volatility, main feature and who they suit
TypeLayoutTypical RTPVolatilityMain featureSuits
Classic slots3 reels, 1 to 5 lines95% to 97%Low to mediumSimple paylinesBeginners
Video slots5 reels, lines or 243+ ways94% to 97%AnyFree spins and wildsMost players
Megaways6 reels, up to 117,649 ways95% to 96.5%HighChanging reel heightsPlayers chasing big wins
Cluster paysGrids such as 7x795% to 97%Medium to highCascading winsFans of chain reactions
Progressive jackpotsVaries88% to 94%HighA growing jackpotJackpot hunters
Bonus buyVariesClose to the base gameHighInstant bonus roundBigger budgets

These RTP ranges are typical for each type. Check the game's own info screen for its exact figure.

01The basics

How do online slots work?

When you press Spin, a random number generator picks the result straight away. The spinning reels are animation that shows a result already decided. Each spin is independent, so nothing that happened before changes the next one. Over the long run most slots pay back 94% to 97% of stakes.

02Return to player

What is RTP, and what does it cost?

RTP is the share of all stakes a slot pays back over a very large number of spins. The rest is the house edge. A 96% slot keeps about ₹4 of every ₹100 staked over time, although any one session can land far above or below that.

Expected long-run cost of ₹1,000 in spins
  • 97% RTP₹30
  • 96% RTP₹40
  • 94% RTP₹60
  • 92% RTP₹80
  • 88% RTP₹120

Some games come in several RTP versions and the casino chooses which one to run. The info screen shows the figure for the version in front of you.

03How wins are spread

What does volatility mean?

Volatility tells you how a slot spreads its wins. Two games with the same RTP can feel completely different: a low-volatility slot pays small wins often and suits long sessions, while a high-volatility one goes long stretches with little, then pays a big win, usually in the bonus round.

  • Low

    Wins
    Often
    Size
    Small

    Frequent small wins keep your balance steady. Good for long, relaxed sessions.

  • Medium

    Wins
    Sometimes
    Size
    Mixed

    A mix of small and bigger wins. Most slots sit here.

  • High

    Wins
    Rarely
    Size
    Large

    Long runs with little or nothing, then the occasional big win, usually in the bonus round.

04Counting wins

Paylines, ways and clusters

Slots count wins in one of three ways. The paytable tells you which one a game uses.

  • Paylines

    Fixed lines across the reels. Matching symbols usually have to start on the leftmost reel and run left to right.

  • Ways

    Matching symbols on neighbouring reels win in any row, which gives 243 or 1,024 ways on a five-reel game. Megaways games change the count every spin.

  • Clusters

    A group of matching symbols touching each other wins, wherever it sits on the grid.

05Features

Free spins and bonus rounds

Three or more scatter symbols usually trigger free spins, where the game spins for you without taking a stake. Most of a high-volatility slot's big wins come from this round. These are the terms you'll see in the paytable.

Wild
Stands in for other symbols to complete a win.
Scatter
Pays or triggers a feature from anywhere on the reels. Three or more usually start free spins.
Multiplier
Multiplies a win, for example 2x or 5x.
Bonus buy
A fixed-price way into the bonus round, often around 100 times your stake.

06Growing prizes

How do progressive jackpots work?

A small share of every bet goes into the jackpot, so the prize keeps growing until somebody wins it. Then it drops back to a starting amount and grows again. Because part of each stake funds the pot, the base game's RTP is lower, often 88% to 94%.

07Playing smart

Is there a way to win at slots?

No. Nothing beats the random number generator over time, and spins are never due. What you can control is how much you play and which games you choose: pick versions with an RTP of 96% or above, set a loss limit if you use autoplay, and treat bonus buys as a bigger risk.

  • Check the RTP in the info screen before you play, and pick a version at 96% or above where you can.
  • Spins are never due. Each one is independent of the last, however long it has been since a win.
  • If you use autoplay, set a loss limit so it stops on its own.
  • Treat a bonus buy as a bigger and faster risk: you pay roughly 100 spins' worth up front.

Step by step

Play your first slot in four steps

  1. 1

    Get your ID

    Message the official WhatsApp number. If you already bet on cricket with us, your ID already works in the casino.

  2. 2

    Add funds

    Deposit ₹100 or more by UPI or bank transfer, using the details support sends you in the chat.

  3. 3

    Open the info screen

    Before you spin, read the paytable for the RTP, the volatility and what triggers the bonus round.

  4. 4

    Set your stake

    Choose a stake that gives you at least 100 spins from your budget. ₹1,000 means ₹10 a spin.

Why King Exchange

Why play slots here?

Your King Exchange ID covers cricket and casino, so you can spin a few reels between overs without moving money or opening a second account. Every slot's info screen shows how it pays, so you can check the RTP and features first, and a person answers questions on WhatsApp, day or night.

  • One ID for cricket and casino

    Spin a few reels between overs without moving money or opening a second account.

  • Paytable first

    Every slot's info screen shows how it pays, so you can check the RTP and features before your first spin.

  • Help in the chat

    Questions about a game or your balance? A person answers on WhatsApp, day or night.

Before you spin

Every slot has a house edge, so over time it keeps part of what is staked. Set a budget for the session and stop when it's gone. You must be 18 or older. If you need a break, support can pause or close your ID.

Read our responsible gaming guide

Where to get help

These organisations are independent and not connected to King Exchange.

Keep reading

Answers

Slots: your questions

Short answers on RTP, volatility, scatters, bonus buys and whether a slot can be due.

8 questions

RTP, or return to player, is the share of all stakes a slot pays back over a very large number of spins. A 96% RTP slot pays back ₹96 for every ₹100 staked in the long run and keeps ₹4. Over a short session your result can be far above or below that.

Reels ready

Line up your first spin.

Ask for your King Exchange ID on WhatsApp and play slots from ₹10 a spin on the same balance as your cricket bets. 18+ only.

  • ID sent on WhatsApp
  • Check the RTP first
  • One balance