The Ninja Slot

The Ninja Slot

Technical Table Information

RTP (return to player):96.00%
Casino Gaming Developer:Endorphina
Release Date:15.02.2015
Maximum Multiplier:2000x
Volatility:Medium – High
Winning Lines:20
Min bet: 0.20
Max bet: 20
Provably Fair:No
Jackpot: No
Technology used:HTML5
Theme slot: Oriental 

Description of the Slot 

Ninjas were a race of Japanese warriors who would undergo rigorous training in martial arts and other combat forms to overcome their enemies. But behind the historical legacy of these warriors are several myths and legends, with some suggesting that Ninjas could also run on water and become invisible. 

Endorphina has drawn inspiration from several myths surrounding these fighters in its 2015 slot, The Ninja. The slot’s action unfolds on a 5×3 grid layout with 20 fixed paylines. Special wilds, multipliers and a bonus feature are part of the game, which can elevate your payouts by a considerable degree. Therefore, let us delve deeper into the slot to learn more about this warrior guild. 

Design and Audio 

The oriental setting of The Ninja slot is pretty evident from the start. Behind the reels lie a vast Eastern landscape, most probably the training space for these disciplined warriors. Since Dragons occupy a strong symbolism in Eastern mythologies, they are also latched on both sides of the grid. Pay symbols come in different shapes, and the pictures inside them start moving if they form part of a winning combination. 

The background score is pretty jumpy and blends well with the action theme. Also, the Kiai shout is heard each time you hit the spin button, adding to the immersive game experience. 


There are some exciting features in the slot including a special Black Ninja symbol, which acts as both wild and scatter symbols. 

Black Ninja 

The Black Ninja symbol can appear on any reel. Landing 2 or more Black Ninja symbols accumulates a specified number of wilds on the reels ranging from 2 to 100. If a single Black Ninja appears on the reels, it functions only as a wild symbol equipped with the power of substitution. 

Note that if you change your bets in the main game, the wilds for each bet size accumulate separately and do not get added. 

Free Games 

Hitting 3 or more Black Ninja symbols triggers the Free Games feature with accumulated wilds. A Ninja appears during the feature and breaks open wilds on reels 2-4. If the Ninja hits a weapon symbol, it transforms into wilds. On the other hand, if the Ninja attacks the Black Ninja symbol, it turns into a wild symbol with a 2x multiplier

If the Ninja manages to unlock several multipliers, all of them are applied to your winning bet. You can claim multipliers up to 8x for each free game spin. The feature continues until you have exhausted all your accumulated wilds. 

Risk Game 

Endorphina provides a Risk Game feature in its slots to increase your winnings a notch higher. After any spin, hitting the cash icon triggers the gamble feature. Four cards are dealt face down, and you must pick anyone from them. If the value of your picked card is higher than that of the dealer’s, you win the round. You can get up to 10 attempts, provided you keep the winning run. 


The Ninja is one of those slots which doesn’t feature card royals in its paytable. Instead, we encounter several traditional weapons used by Ninjas: tiger claws, darts, shurikens and nunchakus. These symbols offer between 3.75x to 10x the stake for landing five similar ones on a payline. 

Among the premium symbols are three Ninjas, with the blue one paying the highest reward of 250x the stake for five matched ones. Regarding maximum payout, you can win up to 2000x the stake on each spin during the free games bonus feature. 


As the title suggests, The Ninja online slot emphasizes the legendary Japanese fighters, who were renowned for their fighting skills. The Ninjas belonged to the mercenary class and were frequently employed for espionage, infiltration, bodyguarding, ambush, etc. 


Endorphina hasn’t specified The Ninja’s volatility, but we assume it is between medium and high levels. Slots with medium to high variance offer better chances of landing big wins, although with a pretty low winning frequency. 

About the Game Provider 

Endorphina is a leading slot provider which began its igaming operations in 2012. The game provider has completed a decade in the igaming industry with several massive achievements. The company has won numerous prestigious awards, including Developer of the Year in 2022. All Endorphina games are thoroughly tested by Gaming Labs International (GLI), and certification from GLI indeed adds merit to the game provider’s portfolio. 

Endorphina has a collection of over 100 high-quality casino games and has over 1700 partners around the globe. The list of partners includes several big names from the crypto gambling industry and some top-notch Bitcoin casinos.

Final Considerations 

The Ninja slot was released in 2015 but has now been updated to adapt to the changing times. Although the payout scale is not that large, it isn’t too bad either. The slot’s attractive game design and exciting features, especially the Black Ninja symbol, make it truly promising. With so many slots coming up as mere imitations of other games, The Ninja surely has something new to offer players. 

Things become even better when we get to enjoy the RTP of 96% from a 2015 slot. So, if you are a fan of oriental slots, The Ninja is one of those Endorphina titles that should be tried at least once. 

Other Slots by Endorphina 

  • Lucky Cloverland
  • Hell Hot 40 
  • Fisher King 
  • Glory of Egypt 


Our The Ninja slot review sheds light on the game’s significant features, payouts and other important sections. Let us know if you find the review helpful. And if there’s something else about the slot we can help you with, ping us through the comment box below. We’ll reach out to you in no time!


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