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Nitropolis 2 slot review

Added by Elk. Information last updated: 06/05/2021

User rating:

- (0)

Expert rating:

3.3 (1)

Game information

Game supplier: Elk

Release date:05/2021



Max. win:bet x 10000

Mobile version:Support all devices

Play Nitropolis 2



Max. win


Expanding reels



Adventure & action



Nature & animals


User ratings (0)

Game design:



Game sounds:

Mobile gaming:



Screenshot Screenshot Screenshot
RTP (Return to player):
Max. win:
bet x 10000

Bojoko score (compared to other slots on Bojoko)
Elk score (compared to other slots of supplier)

Expert's review Trystan Michielsen

Slot tested

Nitropolis 2 is the sequel to the original Nitropolis, both of which take place in the titular dystopian city set sometime in the future. Enjoy a wide variety of animal gangs as well as free spins, expanding reels and wilds.

This game was developed by Elk Studios just like its predecessor, and released in 2021. The slot boasts some improved graphics but largely stays close to the gameplay of the original. There is a 6-reel, 4-row playing field on which to play, with a variety of different symbols that fill up the reels. We can once again see the different gangs represented by various animals, including pugs, Siamese Cats and Dobermanns.

In the background, we’re treated to a grand view of the city, with a distinct cyberpunk aesthetic. There are a few tiny animations to be seen, including flickering neon screens. Most of the actions happen on the playing field, where the various symbols can sometimes expand. Unfortunately, the wins aren’t animated at all with only the tiles themselves lighting up slightly. It was a bit disappointing as it would have brought the different characters to life.

I thought the sound was a bit of an odd choice. We can hear talking over a police radio which I found to be a clever addition, as well as the occasional gunshots in the distance. The music itself however is a very slow, rather laid-back electronic reggae song that feels quite far removed from the idea of a dystopian city ruled by gangs.


Nitropolis 2 needs a rather large variety of symbols to fill the playing field and it does so through a series of high- and low-paying symbols. The high-paying ones are the different animal gangs in the city, represented either through an image of a gang member or a wanted poster. The low-paying symbols are card letters, made to look like they’re spray-painted on the wall. I didn’t think it quite fit the theme but the way they look does help integrate them.

As can be expected from a game with a large number of different symbols, this slot has High Volatility. This means getting a win won’t be easy but when it does happen, they should pay out a little more when compared to other slots. In this case, I found my funds to slowly decline over time, meaning I didn’t quite get the bigger wins I was looking for to win back my spins.

Players can deal with this volatility somewhat by adjusting their bets. The game allows players to pick a bet between £0.20 and £100 per spin. Meanwhile, there is a maximum win to entice people to keep playing. This is a sizable maximum win of 10,000x your bet, which can be a huge sum when combined with a larger bet. Do keep in mind it’s very unlikely many players will ever hit this jackpot and nobody should count on it.

The symbols in the game are, from most to least important:

  • Wild: Wilds substitute all symbols except the bonus symbol.
  • Bonus: With up to 6 bonus symbols on the screen, players can receive up to 25 free spins.
  • Cop: Max. 3x your bet with six-of-a-kind on a winning bet line.
  • Dobermann: Max. 0.9x your bet with six-of-a-kind on a winning bet line.
  • Siamese Cat: Max. 0.8x your bet with six-of-a-kind on a winning bet line.
  • Pug: Max. 0.7x your bet with six-of-a-kind on a winning bet line.
  • Pest Control Poster: Max. 0.5x your bet with six-of-a-kind on a winning bet line.
  • Dirty Dawgs Poster: Max. 0.5x your bet with six-of-a-kind on a winning bet line.
  • Gritty Kitty Poster: Max. 0.5x your bet with six-of-a-kind on a winning bet line.
  • Pug Thugs Poster: Max. 0.5x your bet with six-of-a-kind on a winning bet line.
  • Ace: Max. 0.4x your bet with six-of-a-kind on a winning bet line.
  • King: Max. 0.4x your bet with six-of-a-kind on a winning bet line.
  • Queen: Max. 0.4x your bet with six-of-a-kind on a winning bet line.
  • Jack: Max. 0.4x your bet with six-of-a-kind on a winning bet line.


Nitropolis 2 comes packed with features, just like the original game. The features mostly augment the likelihood of getting a win which is why the payouts for longer wins are so low. The game assumes you will get a number of paylines to pay out at the same time whenever you do get a win. It’s very unlikely that you’ll only get a single win.

The features include:

  • Wild: Wilds substitute the regular symbols in the game.
  • Nitro Reels: Nitro Reels cover 2 tiles and can contain 4, 6, 8 or 10 symbols.
  • Nitro Booster: A bonus feature that can augment the reels below it.
  • Re-Spins: Whenever there’s a win, the winning symbols get a free re-spin. This continues as long as new wins are created.
  • Free Spins: With 3 or more bonus symbols on the screen, the free spins mode is activated.

This all works about the same as can be expected from a slot. The Nitro Reels will act as multiples of the same symbol, meaning it is likely that a win will pay out much more than was originally on the screen. The other feature worth mentioning is the Nitro Booster. Each reel has a tile above it that can hold a random Nitro Booster:

  • Re-Spin: The entire reel will re-spin, not only the winning symbols.
  • Pays Both Ways: Wins are paid out from left to right and vice versa for this spin only.
  • All/Nitro Wilds: All or some of the nitro reels will contain wilds.
  • All/Nitro Premium: All or some of the nitro reels will contain high-paying symbols.
  • All/Nitro Match: All or some of the nitro reels will match up.

In Conclusion

Nitropolis 2 is a very obvious sequel to the original, taking the first game and improving on it in several ways without altering the gameplay. If you enjoyed the first Nitropolis, it’s likely you’ll also enjoy this one. New players might be a bit overwhelmed by the sight of it, as there is a lot going on at the same time.

Players will have to get a grasp on the Nitro Reels and Nitro Booster features first as those dictate a huge portion of the gameplay. While the game has ‘only’ 4,096 paylines with a standard playing field, this can potentially expand to 191,102,976 bet lines which is obviously a ludicrous number.

Either way, I found the gameplay to offer quick thrills and a steady pace through the game, with something constantly scrolling or moving. The wins lagged behind and I did end up in a deficit but I think players that are looking for something a bit more modern might have a good time.

Overall rating:


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  • Features

    Wins and bets

    RTP (Return to Player):95%


    Max. win:bet x 10000

    Min. bet:£0.2

    Max. bet:£100

    Progressive jackpot:

    Reels & playlines



    Non-standard layout:

    Max. lines:191102976

    Min. lines:4096

    Win both ways:

    Other features


    Expanding reels:

    Stacked symbols:

    Colossal symbols

    Auto play:

    Turbo play:

    Quick play:

    Virtual reality:

    Bonus features

    Bonus game:

    Random bonus:

    Progressive bonus:

    Buy bonus:

    Free spins:

    Scatter symbols:

    Bonus game symbols:


    Standard wilds:

    Sticky wilds:

    Walking wilds:

    Stacked wilds:

    Random wilds:

    Multiplier wilds:



    Walking re-spins:

    Sticky re-spins:

    Cascading reels:

    Sticky wins:


    You can play Nitropolis 2 in English, Finnish, Swedish, German and 19 other languages.

    All supported languages:
    English, Finnish, Swedish, German, French, Spanish, Italian, Russian, Bulgarian, Czech, Danish, Greek, Hungarian, Polish, Norwegian, Portuguese, Romanian, Slovak, Turkish, Thai, Vietnamese, Chinese


    Nitropolis 2 supports GBP, EUR, USD, CAD


    Release date 05/2021
    11th newest on Elk 105th newest on Bojoko
    RTP 95% 1.04% < average
    47th highest on Elk 1,106th highest on Bojoko
    Win up to 10000 x your bet
    3rd highest on Elk 270th highest on Bojoko
    Paylines 191102976 955514780% > average
    The highest on Elk The highest on Bojoko
    Min bet £0.2 per spin
    7th lowest on Elk 625th lowest on Bojoko
    Max bet £100 per spin
    The highest on Elk 287th highest on Bojoko
    Rated 0 by 0 members
    The most rated on Elk 38th most rated on Bojoko
    57 more slots listed by Elk

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    Expert's profile


    Trystan Michielsen

    Trystan Michielsen

    Trystan Michielsen is a Dutch native who started his career as a content writer for various small businesses who were interested in creating an online presence.

    When the opportunity arose to move to Malta and work in the iGaming sector, Trystan didn't hesitate to make the plunge. Here he worked as a Content and SEO specialist for different companies before moving back home.

    Now acting as a freelancer he maintains his connection with the online slot community by playing and reviewing the wide variety of videoslots that are released.

    Trystan enjoys playing the slots that offer a full experience, focusing on more than just the technical details but keeping an eye on its presentation. Graphics, music and style can create a game that's more than the sum of its parts.

    A writer at heart, putting thoughts to paper is something he's done for as long as he remembers. In his free time, he enjoys writing fiction as well as watching and reviewing movies.

    Latest reviews:
    Nitropolis 2 cover

    Game supplier:Elk

    Release date:05/2021

    RTP (Return to player):95%

    Max. win:bet x 10000

    Mobile version:Yes

    User rating: 0
    Expert rating: 3.3

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