Double Stacks Slot Machine

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A developer that’s notl known for offering games with huge potential, NetEnt appears to be trying to change things up, and Double Stacks is one of the first slot machines to fall in that category. As you will find for yourself, it’s got the usual high-end graphics and big potential, but let’s delve in and see exactly what we can get from it.

5 reels will have 10 active lines for each round of Double Stacks. It’s a game with massive potential, of up to $200,000 per spin, while the RTP is at a solid 96.1%. It’s the Double Stacks feature that makes all the difference in this game, and there are also wilds, scatters and free spins to take advantage of as you play it.

Betting and Prizes

In terms of betting done, the games coming from NetEnt will usually have a similar system, which activates all lines and then uses coins and denominations to vary the wager for them. The bets for the game vary between $0.10 and $200, so you are allowed to spend at most $20 for each line.

The big potential of Double Stacks comes through in the form of wins of up to $200,000 per spin, or 1,000x the stake. With bonus features consisting of multiple spins, the potential of the game could actually be a lot higher.

It will play as a medium volatility slot machine and it has an RTP of 96.1%, which is a good figure for an online game of this type.

Double Stacks Slot Features

The main feature, the one that gives the slot its name, is called Double Stacks. It requires that a reel get all symbols on it to be of the same type. When that happens, all the symbols found in that column will count as two icons in the combinations they’re a part of. This applies even to wild symbols. Wins of up to 10 symbols are a possibility as a result. The regular high paying symbols appear stacked in the game, so it’s not as unlikely as you might think to get a reel covered and turned into a double stack.

Wild symbols are available, they’re used as regular-sized icons, and you may have them appear in the formation of regular combinations as substitutes. They also can be counted as double icons.

The free spins of the game have a higher potential than the base game, mainly because the wild symbols are also stacked here. It’s much easier then, to have a screen filled with winning combinations, and double ones at that. To get the free spins, you need 3 to 5 scatters, and in exchange the game delivers 5, 15 or 30 free spins. The feature can be re-triggered, with 2 to 5 symbols.

Theme & Design

While you will find that the graphics of this game are excellent, I wasn’t very impressed with the theme that was picked for it. NetEnt seems to have wanted to please everyone, and so they went with a theme that nobody would pay much attention to. Featuring classic symbols on the reels, what you’re going to see inside will be stars, cherries, plums, bells and other similar images.


With the Double Stacks feature in place and with the improved free spins, this game has a bigger potential than most other NetEnt slot machines, so it’s worth playing for that alone. The high production value and the 96.1% RTP contribute to make it even better.

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