Buffalo Stack'n'Sync


The great buffalo, soaring eagles and grass swaying in the wind. These are the iconic themes of the Great Plains of North America, the essence of which is captured in this re-imagining of the classic Vegas slot. Buffalo Stack’n’Sync™ is a 5x4 grid slot with two awesome bonus games and a max win of up to 10,000x.



Land Stack’n’Sync™ scatter symbols to stack any paying symbol on the reels. A stack of 60 symbols fills the whole reel! Fill an entire reel with the same symbol and sync all reels for massive wins!

The first time in a round that one or more Stack’n’Sync™ symbols land, the reels where they land will be filled with a stack of 15, 30, 45 or 60 symbols of one kind.

Only 1 Stack’n’Sync™ symbol can land on each reel in a round.

For each Stack’n’Sync™ symbol that lands 1 respin is awarded. If additional Stack’n’Sync™ symbols land during the respins, those reels are synced to the already stacked reels which copies the symbols from the stacked reel and makes the reels stop in the same position.


When a full reel of buffalo symbols land together they activate a Stampede Reel with a multiplier up to 100x! The Stampede Reel multiplier applies to any winning payline with buffalo symbols that connects to the Stampede Reel. If more than one Stampede Reels are part of the same winning payline, their multiplier values will be added together before being applied to the win.

The possible multiplier values are: 1x, 2x, 3x, 4x, 5x, 6x, 7x, 8x, 9x, 10x, 15x, 20x, 25x, 50x, 75x, 100x


Buffalo Stack’n’Sync™ offers two bonus features triggered by landing the bonus scatter symbol in the base game. Landing 3 bonus symbols awards the Free Spins feature. Landing 4 bonus symbols awards the Stampede Spins feature.


Bonus game with 10 free spins. This feature offers better odds of landing the Stack’n’Sync™ symbol. In this bonus the high-paying animal symbols are more likely to stack than in the base game. This increases the chances of triggering a large stack of buffalo symbols and getting the biggest wins!


Bonus game with 10 free spins. In the feature, only these symbols appear: non-paying skull symbols, buffalo symbols and Stack scatter symbols.

Every time that a Stack symbol lands on a reel, 5 - 60 buffalo symbols will be added to that reel to replace skull symbols. For each Stack symbol that lands, 1 additional free spin will be awarded. Land several Stack symbols on each reel to fill them with buffalo symbols for huge wins!


The theoretical payout for this game is 94.38%. The RTP was calculated by simulating 10,000,000,000 rounds.


The Wild symbol substitutes for all High or Low paying symbols.

The bonus symbol only appears in the base game.

The Stack’n’ Sync™ symbol appears in the base game and Free Spins.

The Stack symbol only appears in Stampede Spins.


The specified requirements for a winning combination in the base game are also used during bonus features or free spins play unless otherwise stated. Each wager is eligible for all winning combinations unless otherwise stated.

You win if matching symbols appear along one of the following predefined winning lines on adjacent reels from left to right, starting with the leftmost reel. Please consult the paytable for the number of each symbol required to win.


This game offers the possibility to purchase the special feature(s) directly from the main game by pressing the BUY BONUS button.

This game offers the FeatureSpins™ buy option. When FeatureSpins™ are activated, each spin guarantees certain features and costs a set amount, based on your current bet level. FeatureSpins™ remain active until you disable them by clicking the DISABLE button.

The RTP when buying FREE SPINS is 94.23%. For full information about this feature, see the section above.

The RTP when buying STAMPEDE SPINS is 94.28%. For full information about this feature, see the section above.

The RTP when buying FEATURESPINS is 94.4%. For full information about this feature, see the section above.



Your current balance is shown in the BALANCE display. Balance, bets and winnings are presented in the player’s chosen currency.


The current bet level is shown in the BET display. Change the bet by clicking on the arrows and choosing the bet level of your choice.

The allowed bet levels for this game are between €0.10 and €25.00. Feature buys can exceed this limit.


The game is started by pressing the SPIN symbol button. The spacebar on the keyboard can also be used to initiate a spin.


Winnings and winning combinations are paid according to the paytable. Multiple wins in one round are added together and the total round win will be displayed in the WIN field (to the right of BALANCE). Separate wins in a winning combination will be displayed during the win presentation. Symbol payouts are displayed in the paytable and reflect the current bet configuration. Only the highest win per winning way is paid.


The maximum achievable win in this game is 10,000 multiplied with the current bet level. The maximum win may be achieved by triggering specific combinations and/or features.


In Free spins the total win for each spin is shown in the WIN field while the accumulating win for all free spins is shown in the TOTAL WIN field next to the number of remaining spins.


Using Autoplay will let you play a number of game rounds automatically. Press the AUTOPLAY button and choose a number of game rounds to initiate this feature. The remaining number of spins is displayed. Autoplay is stopped by pressing the STOP button.


The Advanced Autoplay settings allow the player to set number of plays, total session lost limit and single win limit. The autoplay feature will stop when any of the selected limits are exceeded.


The Turbo Play functionality is used to get the fastest game round possible (not available on all operators and jurisdictions). Turbo Play is activated from the menu.


In addition to the features described here, the bar on the bottom of the game screen displays the current balance in the chosen currency, the amount paid if a win occurs, and the amount bet on the last/current proposition.


In the event of disconnection, a previously started round that has been interrupted may be resumed immediately by starting the game again. The results of a completed round (where display of the visual result was interrupted) will only be re-displayed within the game for winning rounds, but all game rounds may be reviewed in Game History. Any amount wagered on an unfinished game will remain paused until you either complete the game or the game is void as a result of account inactivity or system maintenance. When an unfinished game is void, your bet will be refunded to your account. Any awards earned on an unfinished round will not be credited unless you resume and complete the game. Winnings on unfinished game rounds where the player cannot further influence the outcome of the game will be automatically credited to the player’s account after 1 day. Game rounds will never be affected by unforeseen external errors due to hardware, bandwidth, network errors or similar. Game rounds will be either stored and completed by the player at a later time or they will be closed and the wager will be refunded to the player. If an incomplete game round has not been resumed within 30 days, the round will be rolled back and the wager will be refunded.


The result of a completed game may be viewed in Game History immediately after closing the game window. Results of unfinished games are not displayed in Game History.


- Misuse or malfunction voids all pays and plays.

- Any visual representation of a physical device (a reel, a wheel of fortune or similar) does not represent a “real” physical device and the probabilities of it stopping on any particular position is determined by the game’s random number generator, and not the number of positions on each device.

Last modification date: 11/28/2022