Double Stacks slot review (Netent)

This slot is similar to the popular Joker Pro slot by Netent and contains quite a few elements of Twin Spin and (appearance-wise) Dazzle Me within it.

Any way you look at it, the variance is high and strongly so.

You can win 4 main prizes, up to 1,000 x your bet.

The maximum bet is $€ 200 per spin, so a quick calculation tells us that you could grab an astonishing $€ 200,000 on Double Stacks.

How does the Double Stacks slot work?

Double Stacks is a relatively simple slot with quite a unique mechanism: The Double Stacks. We will discuss this a bit further on in greater detail.

Furthermore, there are 5 reels with 3 rows of symbols and 10 fixed paylines. The range of possible bets is between $€ 0.10 and  $€ 200 per spin.

The style chosen is that of a retro/ fruit machine, with sevens, bells, diamonds and fruit, but with a modern twist.

Variance and payout rate of Double Stacks

The high variance is going to appeal to the serious gambler primarily. The game is fast, simple and effective. So, an ideal slot to try and get an enormous win in a short period.

The theoretical payout rate is 96.1%, a bit lower than what we are used to seeing with Netent slots. Usually, their Return to Player percentages range between 96.5% and 97.% over the long term.

What are the Double Stacks exactly?

The Double Stacks become active when a reel is filled with the same symbol.

Only the premium symbols (diamonds, sevens, bells, and bar symbols) can create a double stack. When this occurs, these symbols will count double in a winning combination.

This way, you can create winning combos with a maximum of 10 symbols while there are only 5 reels.

An interesting concept and it indicates the importance of spinning many reels with the same symbols. It is also possible to produce stacked wilds, which will surely give your balance a healthy boost.

Free spin bonus

3 or more scatters will hand you a minimum of 5 free spins, up to a maximum of 30 free spins.

During these free spins, the stacked wilds are active, and in combination with Double Stacks, this can deliver some delightful surprises.

Retriggering of the free spins already occurs with 2 scatters. This will give you 2 extra free spins.

With 3,4 or 5 scatters, you will win 5, 15, or 30 free spins.

Our verdict on the Double Stacks video slot

Double Stacks is a decent slot by Netent. It misses perhaps a little more depth to be crowned a real top-of-the-line slot, but you will have loads of fun with it.

The high variance will appeal to the serious gambler who wants to hit it out of the park in the first few pitches.

3.5 out of 5 stars.