NetEnt have provided players with many traditional slot games in the past and each of them have proven to be rather successful.

Therefore it should be no surprise that their Double Stacks slot game follows the same format that the developers have used in the past.

Based on a classic nostalgic theme, our Double Stacks game review will highlight all of the key features available in this game to ensure players can enjoy this throwback as much as possible.


Double Stacks slot game is played on a grid that consists of five reels and three rows, thus keeping in line with the rather traditional format that NetEnt have looked to adopt. In addition, there are 10 fixed paylines in which players are able to try and form winning sequences upon.

Spins can be made from as little as €0.10 per go, although those with bigger balances and are able to take bigger risks are able to enjoy limits of up to €200. Nonetheless, those who do not want to play instantly for real money are able to test the Double Stacks Free Play version that is located at the top of this game review.

NetEnt have continued to keep the gameplay experience that players can enjoy with their titles as seamless as possible as they continue to provide some of their trusted buttons that can be customised. For instance, the ‘Autoplay’ and the ‘Max Bet’ buttons are both available, whilst the amount placed on each spin can be adjusted by the click of the ‘+’ and ‘-’ buttons, as well.

When looking at the game’s paytable, it is evident to see that Double Stacks continues to follow the nostalgic and old school theme. The icons include the classic melons, lemons, plums and cherries – each of which appear non-stacked.

The following icons – which are stacked – include the bells, the Bar, the sevens and the diamonds. The slot game’s Wild is the gold star that contains the word ‘Wild’ written across it and this has the power to substitute for all other icons except for the Scatter; the glittering circle in a number of colours that has the word ‘Scatter’ written across it.

Feature Bonuses

One of the main Double Stacks bonuses available in this game is the double stacked pay icons that we mentioned earlier in this Double Stacks game review. The four more valuable icons are the stacked icons, whilst the Wild can appear stacked in the ‘Free Spins’ feature. If a full stack is hit on a reel, the reel will be doubled from three icons to six.

One symbol will then count as two, thus meaning only one more of the same icon will be needed to provide a winning combination if it appears on reel one or reel two. If players are lucky enough to land five stacks of the same symbol on one payline, they will then win a prize that results to the same as 10 of a kind.

The ‘Free Spins’ bonus feature is triggered when three or more Scatters appear on the reels in one spin. Three will provide players with five free spins, whereas four and five will provide 15 and 30 free spins respectively. More free spins, though, can be won throughout the feature when two or more Scatters appear on the reels.

The Wild and the premium icons all appear stacked and will act as described as above.

RTP (return to player)

NetEnt have provided players with a rather appealing return to player (RTP) rate for this low-to-medium-variance game, as it has been set at 96.10%.