Joker Gems

Play the Joker Gems slot to encounter the various gems of the universe. Look to find the three jackpots in the vastness of space.


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  • Developer: ELK Studios
  • Launch year: 2018
  • Available on: tablet (Android, iPad), desktop, mobile
  • Highest stake: 100
  • Lowest stake: 0.20
  • Progressive jackpot: No
  • Number of wheels: 5
  • Number of rows: 5
  • Number paylines: 0
  • RPQ (Repayment Quota): 96.30%
  • Highest winnings: 120,000
  • Developed for: Cluster mechanics

Joker Gems Slot

The Joker Gems slot casino game by ELK Studios immerses you into the vastness of space, inspired with two themes working in fusion as one: the Joker and limitless space. Joker Gems is a five reels slot with no paylines, and its RTP is set comfortably at 96.3%, offering a grand journey to the unknown.

Joker Gems is a well thought out slot with sharp graphics and vibrant looking colours, innovative gaming mechanics and features unique among slots. You create winnings by forming stacks of three or more symbols which attract free spins as well.

Joker Gems symbols

  • 4 low-value symbols made out of various gems
  • 3 premium symbols represented by bars, sevens and jokers
  • The Light Chaser feature

Joker Gems bonus, free spins & jackpot

The Joker Gems slot features cluster mechanics and is why the game has no paylines. Form winning combinations by landing stacks of three or more identical symbols to produce a cluster. A cluster formed in normal mode becomes sticky and awards a bonus spin. The free spins continue for as long as there is an expansion to existing cluster or for as long as the new ones are being formed. The most rewarding symbol is the female jester character rewarding you 700x your stake for 16 or more on the grid. The blue 7 gem symbol rewards you 500x your stake for 16 or more on the grid.

Joker Gems gives you the option to choose the betting strategy which can be triggered through the betting selector panel. The betting strategy set the bets automatically for you. There are four betting strategies you can choose to use if you so desire: Optimizer, Leveller, Jumper and Booster. The Optimizer strategy changes bet value automatically to match the percentage of your balance, Leveller raises a bet after five subsequent losses, Booster raises a stake by onefold after a loss and resets after a win and Jumper lifts a stake onefold after every winning round. The game has three jackpots which are activated when identical symbols fill the jackpot pattern positions.

How to play Joker Gems

  • Form clusters of symbols on the grid
  • Click the three lines button to peruse the paytable
  • Select your bet from the menu using the coins button
  • Spin button sets the reels in motion
  • Auto sets the reels moving in succession a chosen number of times
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