Nitropolis 3 slot
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Nitropolis 3 slot


Nitropolis 3 appeared on the gambling market on 04/04/2022. It is the 3rd game in ELK Studios' dystopian series with Avalanche mechanics, an expanding playing field, Nitro Reels and other features that can bring large payouts. The overall max win potential of this title is 5 times higher than its predecessors, so we are sure that it will be of interest to many high-risk players. Read our full review of this addition to the dystopian series and try its demo right on this page to decide whether it's worth your attention.

Software: ELK Studios
Release Date: 05.04.2022
Volatility: High
RTP: 95.0%
Multiplier: No
Max. win: 50,000x
Bonus game: No
Free spins: Yes
Scatter Symbol: Yes
Wild symbol: Yes
Symbol Stacked: Yes
Jackpot Game: No
Slot lines: 4,096
Slot reels: 6
Layout: 6-8
Stakes range (€/£/$): 0.20 to 50
Slot Theme: Animals
Technology: JS, HTML5

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Nitropolis 3 Free Play

Nitropolis 3 slot preview
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Best Casinos to Play Nitropolis 3 for Real Money

Nitropolis 3 is available to play for real money in many casinos. Remember, any reliable online casino has a license from the regulatory authority, quite generous bonuses and adequate wagering requirements. Do not deal with suspicious online casinos! We have created a list of the best casinos powered by ELK Studios software whose games library has this slot machine and it is located below. Choose the casino that meets all your requirements, register and enjoy a safe and profitable gambling experience!

How to Play

The playing field consists of 6 reels in 4 rows and can be expanded up to 6x8. You get 4,096 ways to win and you will get a combination by landing from 3 to 6 matching symbols on adjacent reels. Avalanche wins expand the playing field by adding additional rows. This time you will get Mega and Wild symbols up to 4x4, as well as big Nitro Reels with 2x2 symbols. This time around, the provider has really gone overboard with the bonus features and max win potential, so we have a lot to talk about.

To start this dystopian journey all you need is:

  • Open Nitropolis 3 at your chosen casino
  • Check out the value of symbols
  • Rules the bonus features rules
  • Select a bet ranging from €0.2 to €50
  • Hit the spin button to enjoy your journey!

Nitropolis 3 RTP and Volatility


Slot offers high volatility and 95% RTP.

Despite the fact that the animals have moved from the dystopian city to the tropical island, you will still have to deal with high volatility. In this slot, prize combinations of premium symbols and bonus features are triggered infrequently, but you have the opportunity to hit a big prize at any time. The theoretical return did not please us much, as it is 95% which is 1% below the industry average.



Nitropolis 3

After looking at this 3rd slot in ELK Studios' dystopian series, we thought the quirky set of nitro animals (pug, rat, cat and doberman) decided to take a break from the apocalypse and went on a well-deserved vacation. However, they apparently moved to the island as they are hiding from the evil Sergeant Nitro Wolfe.

All actions take place against the backdrop of a tropical island with large palm trees and white sand, on which there is a sun lounger. This island would look like a piece of paradise if it were not for the thick, suffocating veil of green smoke that envelops every centimeter of it.

The symbols in the paytable can be divided into 3 categories: premium, medium and low paying. Doberman, sphinx, pug and rat are in category 1, while dirty dawgs, gritty kitty, pug thugs and rogue rats are in category 2. Playing card suits spray-painted on the wall are low-paying icons. The airship is a special Bonus (Scatter) symbol and there is also a "super" version of it. The inscription "toxic" and the green cocktail is a special Wild symbol.

Nitropolis 3 slot machine

Mobile Compatibility

Do you want to go for a walk and take this slot machine with you? Well, no problem! Nitropolis 3 was created using JS and HTML5 technologies making it highly compatible with mobile devices. Once you hit the play button on your smartphone or tablet, it will launch quickly and instantly adjust to fit your screen size. Enjoy the game wherever and whenever you are!

About ELK Studios

This slot machine was created by ELK Studios, a young casino game provider from Sweden. ELK Studios creates first-class slot machines focused on mobile devices. Can you trust its games? Yes, without a doubt, as it has been licensed by the Malta Gaming Authority, the UK Gaming Commission and the Gibraltar Gaming Commission. All of these licenses allow them to operate legally in multiple jurisdictions.

Bonus Rounds & Free Spins


Big Symbols

There are Wild symbols that substitute for the standard symbols and both Wild and regular symbols can land in 1x1, 2x2, 3x3 and 4x4 sizes. Larger symbols are always considered 1x1 symbols when they are part of a prize combination.

Avalanche Wins

All symbols that hit the prize combination are removed, allowing new and/or existing symbols to fall on top to fill in the gaps – this is how the Avalanche mechanics on which this slot is based works. Avalanche wins keep triggering as long as you win, adding 1 new row for each avalanche. The maximum number of rows here is 8.

Nitro Reels

Nitro Reels have 2 height positions. They contain 4, 6, 8, 10 or 12 matching symbols, which are assigned randomly. Big Nitro Reels cover 2x3 positions and Big Nitro Reels count as 2-6 matching 2x2 symbols.


The game comes with 5 special symbols that can land on the playing field at random times and trigger the following modifiers:

  • Redrop: Removes all symbols (except Scatter and Nitro Reels). All Nitro Reels symbols are shuffled
  • Both Ways: sets so that the winnings are taken into account both ways and not just from left to right
  • Nitro Match: Converts Nitro Reel symbols on the same or adjacent reels to a symbol type that matches the symbol on the adjacent reel
  • Nitro Upgrade: Makes Nitro Reels on the same or adjacent reels contain more symbols
  • Nitro Wild: Changes all symbols on Nitro Reels to Wild

Bonus Round

The Bonus Round will be triggered when 3, 4, 5 or 6 Bonus (Scatter) airship symbols land anywhere on the playing field. When this happens you will receive 8, 12, 16 or 20 free spins respectively.

During the Bonus Round, Nitro Reels become sticky (stay in place) and they will stack on top of each other if they land on the same reel. The playing field expansion does not reset between free spins, but the maximum playing field size is still 6x8.

Bonus Round (Super Version)

The Super version of the Bonus Round will be activated as soon as at least 1 Super Bonus symbol (Scatter with the words "Super Bonus") becomes part of the trigger spin. The playing field immediately expands to its 6x8 limit and the Both Ways modifier is always active. The Bonus Round can be restarted at any time.

Nitropolis 3 slot machine

Nitropolis 3 Demo Play

If the bonus features of this slot machine seem crazy to you, we invite you to try its demo version! The demo version of Nitropolis 3 will allow you to spin the reels and trigger the bonus features of this game absolutely for free, even if you don't have a casino account. Using this test mode, which is located right on this page, you can understand what you should expect from this game in paid mode.

Max Win


Win up to 50,000x the bet.

As you can see above, the game has crazy bonus features and we are happy to report that they can lead you to an incredibly big win. So, the max win of this slot is 50,000x the bet – wow, or even more than wow! This max prize is definitely a new personal record for ELK Studios.

overall rating:

The beach setting instead of the usual dystopian metropolis is a cool change and we love that the quirky post-apocalyptic vibe still pervades everything. As with many Nitro slots, it's hard to keep track of everything that's happening on the screen, so guys, don't spend a lot of time figuring out what's what, just read the main rules, press the spin button and dive into the gameplay hoping only for the best. We love that this game comes with a great menu of X-iter stuff and are thrilled with its 50,000x the bet max win potential. All in all, here you get a chaotic and crazy ride with the best this provider has to offer!

Create Avalanche wins to expand the grid to 6x8
1x1, 2x2, 3x3 and 4x4 standard symbols and Wilds
Nitro Reels and Big Nitro Reels
Five different modifiers
FS with sticky stacked Nitro Reels
RTP below industry average
High volatility

Nitropolis 3 Slot - FAQ

Can I buy the bonus round in Nitropolis 3?

Yes! There is a bonus buy X-iter menu, this time with the following options: 2x for a spin which doubles the chances of the bonus round, 10x to get a guaranteed Big Nitro Reel, 25x for a guaranteed Nitro Match modifier with Win Both Ways active, 100x for a standard FS feature and 500x for a super FS feature.

Can I spin the Nitropolis 3 reels for free?

Yes, using the test mode, which is located right on this page, you can understand what you should expect from this game in paid mode.

What is the Return to Player (RTP) in Nitropolis 3?

The theoretical return did not please us a lot, as it is 95% which is 1% below the industry average.

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Rate this slot and leave a review

Overall rating

Based on 3 reviews
Rating: 7.33/10
Sloto Toto own avatar
Sloto Toto
6 lvl Superstar
Winning: £6
Multiplier: x6
Rating: 7/10
The third edition of ELK flagship slot. Never played the first two, so can’t compare, really.
What I can say, a very non-ordinary slot! All those crazy symbols, dynamic multiway board, and numerous enhancers – mega symbols, wilds, bonus rounds, etc. The slot ha really any dimensions and offer various ways to get a big win.
Ofc the game is up and down. All those various features won’t be active non-stop. And it’s very likely to catch a pretty harsh down streak. Be ready for every scenario.
Primstan own avatar
6 lvl Superstar
Winning: £87
Multiplier: x437
Rating: 9/10
I love the potential Nitropolis 3 has, however, I am sure it will take ages to get there, with RTP as low as this. Other than that, I completely forgot about time, while playing this, so much action happening with tons of features, combined with great design, music and, man, I love the way the big wins are displayed and music also progresses into heavy metal tunes. Both ways, feature, is simply outstanding, that if you are lucky enough to land it. Super bonus can pay massively, with nitro match.
slotshunter own avatar
5 lvl Spinner
Winning: £5
Rating: 6/10
A jaunty slot with lots of bonus features. For me the biggest highlight here is Avalanche Wins like in tried-and-true Gonzo's Quest. You need some time while it becomes clear with all these modifiers. Another rare but great perk is paylines that pay both ways. However it is not a permanent feature, in fact you have both ways payout only when a relevant symbol is triggered. The only way to hit some decent win in Nitropolis is to trigger one of the bonuses and luckily it triggers quite frequently.
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