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  • The Bonus Drop
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Game Rules

Batman and The Joker Jewels

5-reel, 25-line slot1 of 4 DC Super Heroes Jackpots.

The objective of Batman: The Joker Jewels is to spin the reels and match symbols on the 25 active paylines. There are also some special bonus features that could help boost your balance with this fun online casino slot. When you play Batman: The Joker Jewels at William Hill Casino you will also have the chance to enter the DC Superheroes Jackpot Game.

How to Play:

  • Start by choosing your Total Bet. Do this by using the +/- buttons underneath the Total Bet Box. The slot is always played with 25 paylines, so the Total Bet is always calculated as Line Bet x 25. This is the amount deducted from your balance for each spin.
  • When you have selected your bet, click the Spin button to spin the reels and start the Batman: The Joker Jewels slot game. Whenever the reels are spinning the Spin button changes to Stop; select this to speed up the process and get quicker results.
  • You can also speed up the game in the same manner by switching on Turbo Mode.
  • You can set a predetermined number of spins to be played through consecutively using Auto Play Mode. Click on the Auto Play button and choose from 5, 10, 20 or 25 Auto Spins. These will play through without your input, only stopping if a Bonus Feature is awarded, or you select the Stop button.
  • When the reels have come to rest after a spin, any winning combinations will be clearly highlighted on screen and the total amount won shown in the Win Field. All possible payouts are shown on the Paytable screen, which can be accessed via the info button on the bottom left corner of the screen. To calculate the value of a Line Win (matching symbols on a payline), multiply the figure shown on the Paytable by the Line Bet.

Info Pages:

Selecting the Info button on the bottom left of the screen will open up the various information pages for Batman: The Joker Jewels online slot. You can move through the different pages by using the arrows on the bottom right of the screen. To return to the main game, select Reels. The different Info Pages are:

  • Paytable (1) – shows the payouts for high value symbols.
  • Paytable (2) – shows the payouts for standard symbols.
  • Joker Random Wilds – explains the Joker Random Wilds Feature.
  • Batman Vs Joker Free Games – explains the Free Games Feature.
  • Paylines – shows where the paylines appear on the reels.
  • DC Superheroes Jackpot – explains the Progressive Jackpot game.


Paylines are the pathways that matching symbols must follow across the reels to record Line Wins. Only active paylines can register Line Wins.

Please note there is a difference between the Line Bet and Total Bet. The Line Bet is the wager on each individual payline, the Total Bet is the accumulative bet on all paylines.

About Payouts:

All winning combinations and their values are listed on the Paytable. To calculate the value of a Line Win, multiply the relevant figure from the Paytable by the Line Bet.

Only the highest win is paid on each individual payline. Multiple wins can occur on different paylines; these are added together and paid as a total win.

Wild Symbols:

There are two Wild Symbols used in Batman: The Joker Jewels slot – The Joker (Smile) Wild and Batman Wild. They can substitute for all other symbols (except for Bonus Scatter) to help form Line Wins.

Both Wild Symbols can form their own standalone Line Win with a separate payout.

Joker Random Wilds Feature:

This can be triggered on any spin in the main game. The Joker will add up to nine Smile Wilds on random positions across the reels. You will then be paid for any Line Wins according to the Paytable.

Batman Vs Joker Free Games Bonus:

If you land a Bonus Symbol on Reels 1, 3 and 5, the Free Games Bonus will be awarded. You must choose between the Batman and Joker. Choosing a side means that a 5x Multiplier is added to their side of the Multiplier Meter. Landing the special Batman/Joker Wild Symbol will move the Multiplier Meter to the left. All wins in Free Games will be multiplied by the current Multiplier level. Free Games are unlimited and will only end when the Multiplier Meter lands on End.

Please note: Free Games are played with the same Total Bet as the triggering spin.

DC Superhero Jackpot:

Batman: The Joker Jewels features a Progressive Jackpot Game, which it shares with other games in the DC Superhero range of casino games. The Jackpot Game is awarded randomly and is independent of the slot game, meaning you do not need to get a winning result to be awarded the Jackpot Game. If you are awarded the Jackpot Game, you will be guaranteed to win one of four Progressive Jackpots: Mini, Minor, Major or Grand.

A Progressive Jackpot is a prize funded by taking a small percentage of each player’s wagers over a period of time. The idea is that the fund will grow and grow until one player wins the Jackpot payout. The casino will provide a base amount for the Jackpot fund; this is called a seed.

If you are awarded the Jackpot Game:

  • You will be taken to a new screen.
  • The left of the screen has a grid with 20 hexagons. The right-hand side of the screen shows the four Jackpot awards.
  • The objective is to click on the hexagons on the grid to reveal coloured Energy Balls that correspond to each of the four Jackpot awards. Each Jackpot requires a different number of Energy Balls to be awarded: Mini = 2 Balls, Minor = 3 Balls, Major = 4 Balls and Grand 5 = Balls.
  • When you reveal the relevant number of Energy Balls for a particular Jackpot, you will win that Jackpot amount.

Please note: the game is played using a timer. If have not made your choices within the time limit, a Jackpot will be randomly awarded to you.

Any winnings from the main game are added to the Jackpot win and displayed as a total at the end of the DC Superheroes Jackpot Game.

The Jackpot is awarded and funded as follows:

Seed (base amount provided by the casino for Jackpot award)

  • Mini = €100
  • Minor = €1,000
  • Major = €10,000
  • Grand = €200,000

Contribution Rate (amount taken from each wager to fund Jackpot) – 0.99%

Win Condition (result needed to win Jackpot) – Jackpot Game is awarded at random.

Win Requirement (how to be eligible for Jackpot) – play DC Superhero Jackpot casino games at William Hill Casino.

Please note the following information:

The Jackpot amounts are displayed in Euro. You will be awarded the equivalent amount in GBP (or other currency if relevant).

The software used ensures that the Jackpot cannot be won by two players at the same time.

Return to Player:

The theoretical RTP (Return to Player) is 95.01%, which includes the 0.99% Jackpot Game contributions.


The following buttons are used to perform action in the game:

Info – click to access the Info Pages, which includes the Paytable.

+/- Total Bet – use these buttons to increase or decrease the Total Bet.

Auto Play – click to spin the reels using Auto Play Mode.

Spin– spins the reels.

Turbo Mode – switch on/off to speed up the game.

Gadget Bar:

When it is enabled, the Gadget Bar Menu will appear on the right-hand side of the game screen. It may contain information on William Hill bonus offers and promotions, or let you access casino mini games.

Note on Disconnections:

If you lose internet connection when playing the main game, the spin will still be completed. You can view the outcome of that spin by accessing the History when you have re-established a connection.

If you are disconnected during a Bonus Feature, you will be redirected back to the game on re-establishing a connection. You will then be able to continue from where you left off.

If you are disconnected during the DC Superheroes Jackpot Game, one of the four Jackpots will be randomly awarded to you. This will be displayed on screen when you log in to the casino and load the game once more.

Note on Malfunctions:

Malfunction voids all bets, with the stake returned to the player.