12 Trojan Mysteries Slot Review

Expert Rating: 5 out of 5
Review by Chris Taylor
Last update 11th December 2021
Review by Chris Taylor
Last update 11th December 2021

Embark on an epic odyssey and uncover the mysteries of Troy in the 12 Trojan Mysteries slot. Created by 4ThePlayer, it has 6 reels and 4,096 ways to win. It uses a TOP MYSTERY mechanic. Look out for Trojan Horses which transform into a randomly chosen symbol in the base game. It’s all about the Mystery Free Spins Bonus feature where 6 scatters pays 10,000 x stake. With unlimited free spins available, the Mystery Meter determines which symbol the Trojan Horses transforms into. After each spin, the lowest symbol is removed from the meter meaning the final free spin will result in the Helen of Troy symbol being chosen. With 20,000 x stake wins, find out more in our 12 Trojan Mysteries review.

12 Trojan Mysteries Max Win
20,000 x bet
Type of Slot
Video Slot
Ancient Greek Mythology
Stakes Range
10p to £50
Bonus Features
Yes (3)
Free Spins/Multiplier
Max Win
20,000 x

12 Trojan Mysteries Demo

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12 Trojan Mysteries Slot RTP, Details & Wager Limits

Reels/Paylines: 6 reels + 4,096 ways to win

Stakes Range: 10p to £50 per spin

RTP: 96.5%

Max Win: 20,000 x stake per spin

The 12 Trojan Mysteries slot is played with 6 reels, 4 rows and 4,096 ways to win. Winning combinations are formed by landing 3, 4, 5 or 6 identical symbol on adjacent reels starting from reel 1. For the higher value symbol, you need 2 or more.

Stakes cater to all pockets as you can spin away from 10p to £50 a spin. Use the plus and minus buttons either side of the main spin button to adjust your bet level accordingly. As with all slots, there’s an Autoplay facility which allows you to select up to 100 autospins with single win and loss limits. This isn’t available in the UK from October 2021.

The 12 Trojan Mysteries RTP is 96.5% which is the go-to return rate for the last few 4ThePlayer slots. This is also quite significantly higher than the 96% average. 72% of the RTP comes in the base game and 24.5% in the free spins.

High variance, the bigger wins will from the free spins. It comes with a hit frequency rate of 20.8% meaning you’ll land a win in just over a fifth of spins. The most you can win on a given spin is 20,000 x your total stake. Your chances increase in the free spins.

Theme – Audio and Design Features – discover the mysteries of Troy

Theme: Ancient Greek Mythology

High Value Symbol: Helen of Troy

Compatibility: Mobile, Tablet, Desktop


With an ancient Greek mythology theme, the 12 Trojan Mysteries slot sees you embark on an epic odyssey to discover the towering wonders of Troy. It’s based on the Trojan War which saw Achaeans besiege the city of Troy after Paris of Troy took Helen from her husband Menelaus, the King of Sparta. It’s regarded as 1 of the most important evens in Greek mythology.

Beautifully design, you step inside the great walls of Troy which provides an epic backdrop. With a stirring soundtrack, symbols on the reels include A, K, Q, J, 10 and 9 royals. Higher value symbols include pots, bags of gold coins, the great Achilles warrior, Trojan Prince Paris and Helen of Troy. Helen of Troy is the highest paying symbol giving you 1, 4, 5, 6 or 7.5 x stake for 2, 3, 4, 5 or 6 in combination.

The gold apple symbol is the wild and can appear on all 6 reels. It substitutes for all symbols except the free spins scatter. There’s also a Trojan Horse mystery symbol which I will look at below in more detail. Here’s a list of all payouts by symbol:

Symbol Payouts
12-trojan-mysteries-slot-9-symbol9 3, 4, 5 or 6 = 0.2, 0.5, 1.2 or 2 x stake
12-trojan-mysteries-slot-10-symbol10 3, 4, 5 or 6 = 0.2, 0.5, 1.2 or 2 x stake
12-trojan-mysteries-slot-j-symbolJ 3, 4, 5 or 6 = 0.3, 0.7, 1.5 or 2.5 x stake
12-trojan-mysteries-slot-q-symbolQ 3, 4, 5 or 6 = 0.3, 0.7, 1.5 or 2.5 x stake
12-trojan-mysteries-slot-k-symbolK 3, 4, 5 or 6 = 0.4, 1, 2 or 3 x stake
12-trojan-mysteries-slot-a-symbolA 3, 4, 5 or 6 = 0.4, 1, 2 or 3 x stake
12-trojan-mysteries-slot-pot-symbolPot 2, 3, 4, 5 or 6 = 0.2, 0.5, 1.5, 3 or 4 x stake
12-trojan-mysteries-slot-bag-of-gold-coins-symbolBag of Gold Coins 2, 3, 4, 5 or 6 = 0.2, 0.5, 1.5, 3 or 4 x stake
12-trojan-mysteries-slot-achilles-symbolAchilles 2, 3, 4, 5 or 6 = 0.4, 1, 3, 5 or 6 x stake
12-trojan-mysteries-slot-paris-symbolParis 2, 3, 4, 5 or 6 = 0.4, 1, 3, 5 or 6 x stake
12-trojan-mysteries-slot-helen-of-troy-symbolHelen of Troy 2, 3, 4, 5 or 6 = 1, 4, 5, 6 or 7.5 x stake
12-trojan-mysteries-slot-gold-apple-wild-symbolGold Apple Wild Substitutes for all symbols above
12-trojan-mysteries-slot-trojan-horse-mystery-symbolTrojan Horse Mystery Triggers Mystery Symbols feature
12-trojan-mysteries-slot-free-spins-shield-scatter-symbolFree Spins Shield Scatter 3+ triggers free spins
12-trojan-mysteries-slot-+1-symbol+1 Adds 1 free spin in feature

BIG REEL Portrait Mode

12 Trojan Mysteries, like all 4ThePlayer slot games, was created using HTML5 technology. This means it’s available to play on desktop, mobile and tablet devices. All pretty standard.

4ThePlayer goes 1 step further. This sees larger reels which are stacked on top of each other. The reels also spin right to left and pay from top to bottom. The BIG REEL Portrait Mode sees the reels take up 60% of your mobile device screen whereas the normal mode only occupies 20%.

12 Trojan Mysteries Bonus Features

12 Trojan Mysteries has 3 bonus features. The TOP MYSTERY mechanic features throughout as the Trojan Horse mystery symbol can transform into any symbol on a base game spin. In the free spins, the Mystery Meter randomly selects a symbol for when the Trojan Horse appears. The Mystery Meter improves with each free spin for greater rewards the further you go.

Mystery Symbols feature


12 Trojan Mysteries is the first game to use the TOP MYSTERY mechanic. When Trojan Horse mystery symbols land on the reels, the Mystery Symbols feature will activate if the mystery symbols can potentially form a winning combination. All mystery symbols change to the same randomly chosen symbol.

Mystery Free Spins Bonus feature


The Mystery Free Spins Bonus feature is triggered when you land 3, 4, 5 or 6 free spins shield scatters on the same base game spin. If you land 4 or more, you will get a payout, before the free spins begin, up to 10,000 x your total stake:

4 scatters 10 x stake
5 scatters 100 x stake
6 scatters 10,000 x stake

Once in, you will begin with 12 free spins. During the feature, each scatter than lands will award 1 extra free spin. This can lead to unlimited free spins.

More importantly, the free spins comes with a Mystery Meter which appears above the reels. This randomly selects a symbol on every free spin. When Trojan Horse mystery symbols land on the reels, they will change into the symbol chosen on the mystery meter.

Now, the Mystery Meter is improved with every free spin as the lowest symbol is removed from the meter. As the Mystery Meter improves, so does your winning potential. This is where the bigger wins will come from. On your final free spin, the highest value symbol, Helen of Troy, is selected if a Trojan Horse appears.

Buy feature

In some territories, you can buy your way into the Mystery Free Spins Bonus feature. Known as the Buy feature, this will cost you 50 x your total stake. Only activated in the base game, the RTP remains the same at 96.5%.

12 Trojan Mysteries Review Summary – classical, volatile action from 4ThePlayer

Theme & Symbols

Sounds & Music

Bonus Features

RTP (96.5%)

Max Win (20,000 x)


The 12 Trojan Mysteries slot is simpler than other 4ThePlayer titles. Much like 9k Yeti, the focus is on the free spins. The key to winning big is to get wins with the higher value symbols which occurs the further into the feature you go.

With max wins of 20,000 x stake, Trojan Horses on your final free spin could be the key to unlocking the riches behind the great walls of Troy. It will take approximately 200 base game spins to get into the Mystery Free Spins Bonus feature which isn’t bad.

Remember that landing 6 scatters will result in an instant 10,000 x stake payout. That’s the highest scatter pay I’ve come across. This is much bigger than the 2,500 x stake win for 5 scatters in Dead or Alive 2.

12 Trojan Mysteries is well designed and has that classical feel. With a slight twist in the free spins, it will appeal to a broader range of players. If you’re looking for uniqueness and innovation, 4ThePlayer’s 3 Secret Cities is highly recommended and their best slot to date in my opinion.

  • 20,000 x stake max wins
  • 10,000 x stake win from 6 scatters
  • Superb design & audio
  • Not as innovative as other 4ThePlayer slots

12 Trojan Mysteries FAQs

What is the 12 Trojan Mysteries RTP?

The 12 Trojan Mysteries RTP is 96.5%. Higher than the 96% average, this highly volatile slot comes with a hit frequency rate of 20.8% meaning you’ll get a win every 5 spins.

What is the 12 Trojan Mysteries max win?

The most you can win is 20,000 x your total stake. Whilst this can be won on a base game spin, your chances increase in the free spins due to the Mystery Meter increasing improving the Mystery Symbol the more you play.

Are there any 12 Trojan Mysteries free spins?

Yes, the Mystery Free Spins Bonus feature begins with 12 free spins and up to 10,000 x stake (for 6 scatters). With unlimited extra free spins to be won, there’s a Mystery Meter which randomly selects the Mystery Symbol when the Trojan Horse appears. The Mystery Meter improves with each free spin for bigger wins.

What is the Mystery Symbols feature?

The Mystery Symbols feature is triggered when Trojan Horse mystery symbols land and these can create a win. Using the TOP MYSTERY mechanic, the Helen of Troy symbol will give you biggest wins.