Every time players start playing the Santa’s Stack slot, they immediately immerse themselves in the festive mood. They will find themselves safely tucked inside a comfy house along a suburban street. As synonymous with the festive period, everything in sight is bright and colorful. The incorporated sound effects brilliantly complement the theme as they mimic the Christmas jingle bells song.

Before players can start spinning this slot machine’s reels, they should familiarize themselves with the gameplay rules and features, among other things. Doing this enables them to devise the perfect playing and winning strategy, which will put them on a path to gaming success as soon as they initiate their gaming session.

First, we will highlight the key numbers and details behind the Santa’s Stack slot. These numbers and details are pivotal in helping players devise the perfect winning strategy.

• Paylines: Santa’s Stack slot uses the cluster pay mechanic. To appear, a winning combination requires five identical symbols to land adjacent to each other horizontally and/or vertically.
• Volatility: Super high.
• Max Payout: 20,000x the bet.
• Min/Max Bet: The minimum bet option is set at 0.10 coins per spin, while the maximum bet option is 50.00 coins.
• RTP: 96.27%.

Like most ordinary slot machines, the objective when playing the Santa’s Stack slot is to line up identical symbols next to each other. The unique thing about the game is that it doesn’t use the standard pay lines template. Instead, it uses the cluster pays mechanic.

This mechanic requires players to land at least five identical symbols adjacent to each other horizontally and/or vertically. When this objective is met, the respective payout is awarded. Note that the actual position of the block (adjacent symbols) does not matter. All that’s required is a minimum of 5 at once.

The symbols that players will be aiming to match on the 8 x 8 reel grid include:

1. Santa 
2. Mrs. Claus
3. Elf 
4. Reindeer 
5. Red light 
6. Greenlight 
7. Blue light 

Besides the regular symbols above, some special symbols land on the grid during gameplay. These are as follows:

• Wild: The wild symbol in Santa’s Stack slot is represented by an icon with a ‘W’ inscription.
• Bonus Symbol: An icon that is inscribed BONUS represents the bonus symbol.

• Secret Santa Feature: The Secret Santa feature activates when players land a winning cluster that features the wild. Upon activation, one respin is awarded, and the symbols involved in the winning cluster and the wild are transformed into mystery symbols. The mystery symbols will turn sticky and remain locked in their positions till the end of the feature.

• Free Spins Feature: Players must land at least three bonus symbols on the same spin to start playing the free spins round. Upon activation, five free spins are awarded, and each bonus symbol beyond the 3rd awards one extra free spin. The Secret Santa feature is guaranteed to be active at all times during this feature. At the start of the round, one wild appears on the grid.
  Afterward, one wild is added to the grid on each free spin. This, therefore, means that by the fifth free spin, there will be five wilds with which to start that spin. During this round, players may land special Christmas tree symbols which award random values as follows:

1. Money Tree on a Blue Portrait: Awards one additional free spin.
2. Money Tree on a Red Portrait: Awards a 1x multiplier.
3. Money Tree on a Red and Blue Portrait: Awards a combination of one free spin and a 1x multiplier.

• Buy Feature: Players can activate the buy feature during the base mode. This is done by clicking the Buy Feature button on the main screen. A tab showing the stipulated feature purchase price will pop up after clicking the button. This price will help players gain immediate access to the free spins round.  

In designing the Santa’s Stack slot machine, Relax Gaming made use of HTML5 technology. Thanks to this technology, the game is accessible across many platforms, including both desktop and mobile. This essentially means the game can be enjoyed even on the go. Well, to add to the many reasons why you should try out the game, note that:

• It was designed using arcade-style graphics, appealing to slot and game lovers.
  
• Its super impressive math model is epitomized by an RTP that rises to 97% when the buy feature is enabled.
  
• Its top max payout is 20,000x the bet, and it can be won on any spin, whether playing in the base mode or the free spins round.