User rating5 / 5

Twin Spin slot from NetEnt

NetEnt’s Twin Spin slot machine is as clean, smooth and fascinating as one perfect game can be. No complexity or intricating bonus features to distract you from your aim - getting big wins in no time. It’s colourful, with big (unembellished) symbols and a modest, funky soundtrack in the background. The Twin-Spins randomly turn into triplets, quadruplets, and even quintuplets, if the lady luck lands on your shoulder. Wild symbols increase the win potential even more and with its 243 pay lines, you’ll see a lot of prizes coming your way.

The theoretical RTP of the machine is 96.55% with Medium-High Volatility. There is a lot of quality in this slot certainly worth a spin or two. By the way, the ranking of this game in many famous casinos is extremely high - inside the top 100 of all games. Check it out in the free DEMO version here on our site. No registration required.

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Personal testers’ opinion about Twin Spin slot

This is one plain but also exciting game, without posh and majestic bonus features, like Free Spins (which are not missed at all). The random expanding Twin Reels here make every spin a potential lifetime winner. 2 reels are selected to be identical twins, if a 3rd, or maybe even 4th and 5th reel is added to the first 2, you are in for a massive win. Often, the last 4 reels are selected to be a replica of each other, but the first reel is completely different, with not 1 single symbol mirroring those from the last 4 reels. Sadly, this means you got zero, nothing! 

Recently there was a report that one lucky Twin Spin slot machine player won an amazing C$37 500 with one spin, at a bet level of C$15! So, not only theoretically it is possible. It’s practically done and can really occur, but extremely seldom, of course.

During our test sessions, we observed that the slot handles better rounds with small and medium-sized bets. It also seems to be performing more favourably with stakes, multiples of two: 0.2 CAD, 2 CAD, or 20 CAD, for instance. 

  • If the 4 last reels are selected several times in a row, but they don’t deliver corresponding symbols to those on the first reel, it might be a good time to reduce the bet or just leave the machine altogether.
  • The machine is built with no other than the Twin Reel feature occurring in the regular spins, the whole prize pool is reserved for them. 
  • When playing for real money it would be smart to establish the slot’s mood. From the first 20-40 spins, it will be obvious if the slot is hot or cold.

Review and recommendations by the testing team

  • Despite being not endowed with multiple complex features this is one highly engaging and appealing slot. It is one volatile NetEnt creation, with fine quality graphics and sound. Although very popular, Twin Spin can also be cold at times, at some casinos. When it is cold, it can do huge damage to your capital, and very quickly.
  • The wins during the main game are not impressive, just around 0.5x-3x total bets. When it’s hot, it gives higher than average winnings often and can trigger several high-value combinations in a row in the range of 30x-60x total bets.
  • During our tests, we noticed that there is no long waiting for the quadruple reels to come by. Actually, this happens super often. But with the last 4 reels. And they don’t include any of the desired symbols to complete some combination. The slot did occasionally pay for 4 reels, but predominantly with low-value symbols. If you’re lucky enough to get a full screen of expensive symbols (diamonds or sevens), payments can easily reach up to 300x total bets. Due to this high potential, you can be rewarded with a big win at the beginning of your session. If that’s not the case, you might be in for a long wait, or a big loss.

NetEnt declares the following probabilities

  • The total winning percentage (RTP) of the slot is 96.6%. It consists of several parameters:
  • The rate of payouts for 2 linked reels is 55.1%.
  • At 3 reels - 17.8%.
  • At 4 reels - 7.8%.
  • The probability of getting any win in the usual spins is 27.8% (that is, almost every third spin).

Note, that NetEnt doesn't declare the probability of hitting when all 5 reels are linked together. This has the highest payout potential.

Hidden parameters and settings (data from testing)

  • The probability of a hit (any winning) is 27,71%.
  • In Twin Spin, there is no bonus or free spins feature. The linked reels build-in feature (when the same symbols will fall in all linked reels) replaces them. 
  • The maximum payout during the tests was 432x. This is the average number for a slot with a 7,13 volatility rating.
  • The average winning from the linked reels feature was 7x. As you see, the maximum potential of winning can be released in the situation, when all five reels will be linked, and stacked symbols (same) will fall on them.
  • Volatility is 7,13 out of 20 (average to high). Twin Spin has the high potential of big winning but uses its rear.
  • Cycle length is average to long. It seems that the more spins you do - the longer cycle of winning is.
  • The rating of the slot machine for the wagering is 3,64 out of 10. It is a bad idea to complete bonus wagering requirements here.
  • RTP (return to the player percentage) of 96.55% allows getting a positive mathematical expectation of winning at the casino.


  • Provider — NetEnt.
  • Range of bets — 0.1-50 coins.
  • Playing field — 5х3.
  • The maximum winning is 270 000 coins (Diamond symbol).
  • Bonuses — the Reel Spinning feature.

How to win at the Twin Spin slot machine? (Conclusion)

  • Our fans know what to expect at the start of this section, our usual advice: test the slot in the free DEMO version, before making real money investments. 
  • During the first 50 spins, it’s possible to determine the mood of the machine, by beginning the session with small bets. Usually, you will not need more than 50 bets to find out. 
  • If you established that the slot is hot, we recommend playing with medium or small bets. In our opinion, the machine gives the best results when you play with multiples of 2 - 0.2 CAD, 2 CAD, or 20 CAD. So, we cannot suggest this game to high-rollers.
  • We also do not recommend long sessions on the Twin Spin slot machine. Instead, using the ‘Hit and Run’ strategy (changing the slot after a big payout) might be appropriate here. 
  • Bonus hunters might be better off this online slot.

Where to play?

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Written by Kamen Valev
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