Sidewinder DoubleMax

Welcome to Sidewinder DoubleMax™, a 20 payline video slot with an insane shuffle bonus featuring exponential win multipliers.


Sidewinder DoubleMax™ is a video slot with 5 x 3 rows incorporating 20 paylines. Wins pay both ways, so 3 or more identical symbols landing on a payline starting from the left-most reel to right, or right-most reel to left will pay. 5 of-a-kind wins pay both ways.

Wild Symbols

Wild symbols can only appear during the Sidewinder feature. They substitute for all symbols.

Super Wild Symbols

Super Wild symbols can only appear during the Sidewinder feature. They only appear as stacks of 3 symbols. They act as regular wild symbols and substitute for all symbols.


The Sidewinder Feature can trigger randomly after a losing spin. The reels shuffle to a winning combination. After the initial win is awarded, the reels will shuffle again. If shuffling to a winning combination the feature continues, if shuffling to a losing combination the feature ends. A win multiplier applies to every win awarded in the feature. The multiplier trail starts at X1 and increases exponentially with each step. With every winning shuffle the multiplier trail increases by one step. Every win produced during the feature is multiplied by the current win multiplier. At the start of the feature, up to 6 Wild or Super Wild positions are added to random points on the multiplier trail. If the trail is increased to a position containing one of these positions the Wild/Super wild is added to a random reel, prior to the next shuffle. The Sidewinder feature cannot be re-triggered.


By selecting the Bonus Buy button, the player can pay x50 to buy a Sidewinder Feature with their choice of bet size. On placing their bet, the reels will spin to a losing combination and the shuffle feature is awarded.

There is a maximum stake that can be played for Bonus Buy.

The maximum stake for Buy Bonus may differ from the above information depending on where you play the game.


  • Press the Spin button to start the game.


To calculate your total payline win, calculate all payline wins and add them together. To calculate a single payline win, count the number of identical symbols lined up in sequence on the line. If three or more identical symbols are lined up, find the win value in the dynamic Pay Table. There you can find the value for all symbols for 3-in-a-row, 4-in-a-row, and 5-in-a-row. Only the highest winning combination per line, in each direction, is paid out.


Click the options icon to expand or collapse the options tray.

  • Pay Table - Find how much each symbol pays out, explanations of the game features, and information on the paylines.
  • Game Rules - Opens the rules of the game.
  • Settings - Toggle sound on/off, and other settings.
  • History - If this feature is enabled on your gaming website, you may review and replay your last 10 game rounds.
  • Lobby - Exits the game and returns the player to the lobby.


Menu (Burger Bar)

    • Sound - Allows the player to mute the sounds.
    • Credit - Displays the player's account balance.
    • Win - Displays the win for the current game.
    • Bet - Displays the current bet amount.
    • Bet Select - Opens a pop-up that allows the player to select their desired bet amount.
    • Autoplay (If Available) – Allows the player to access the Autoplay panel to select amount of autoplays and limits.
    • Spin Button – Places the bet and spins the reels. When the reels are spinning, the spin button transforms into the Stop Button. Pressing the Stop Button stops the reels immediately (Where available).
    • Bonus Buy – Opens the Bonus Buy Menu.

(Some features and options may not be available in your jurisdiction)


Space Bar – Press the space bar to spin on desktop.


The expected payback reflects the theoretical return across a very large number of spins by numerous players over an extended period of time and cannot be affected by the player's strategy. The overall theoretical return to player is 94.0%.

The maximum win is 5,000x base bet. If a Sidewinder feature exceeds 5,000x base bet, 5,000x is awarded and the feature is ended.

Last modification date: 1/11/2024