Play Nitropolis 3 Slot

Nitropolis 3 is the volatile third slot in the dystopian ELK range, and you start with a 6x4 grid and 4,096 win ways. Avalanche wins expand the grid up to 6x8, and you’ll also benefit from up to 4x4-sized symbols, Big Nitro Reels and 5 special modifier symbols. Nitro Reels are sticky in the bonus round, and the grid is already maxed out in the Super version of it. You can win up to 50,000x your stake, and our full review is available below the free demo game.

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User Rating: 7.0/10 (3 votes)

Provider:ELK Studios
RTP 🔗: 95%
Variance: HIGH
Max Win: x50000.00
Betways: 4096 (Bothway)
Release: 25.03.2022 [ i ]
SlotRank: N/A
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Nitropolis 3 Review

Last Update: 26.11.2022. Author: SlotCatalog.

At first glance we thought the quirky pack of Nitro-animals had taken a break from the apocalypse, and simply gone on a well-deserved vacation. Apparently, however, they’re on the run from the evil Sergeant Nitro Wolf. They’re basically waiting things out on the beach, just like the Yakuza gangsters in Takeshi Kitano’s unforgettable Sonatine (1993). ELK has truly gone overboard with both features and potential this time, so there is plenty to cover.

The default 6x4 grid is framed by a garbage compactor, and up to 4 extra rows are added via the Avalanche mechanic. You get mega symbols and wilds up to size 4x4 this time, as well as Big Nitro Reels packing 2x2-sized symbols. Both the regular and the super version of the bonus round can trigger organically, which is not always the case with ELK. The 50,000x potential is not only 5 times higher than in the predecessors, it’s also an all-time high for this developer.

Nitropolis 3 Slot - Reels Screen

Nitropolis 3 Slot Features

You win by landing 3 to 6 matching symbols on adjacent reels, and the 4 animal-character premium symbols pay between 2 and 5 x your stake for 6 of a kind wins. Wilds step in for regular pay symbols to help complete wins, and both wilds and pay symbols can land in size 1x1, 2x2, 3x3 and 4x4. Larger symbols always count as 1x1 symbols if part of a win.

Winning symbols are removed via the Avalanche mechanic, and this allows for new and/or existing symbols to drop down to fill the gaps. The process repeats as long as you keep winning, and a new row is added per Avalanche up to 8 rows at the most.

The regular Nitro Reels frame 2 positions in height, and they come with 4, 6, 8, 10 or 12 matching symbols randomly assigned. What’s new is the Big Nitro Reels which cover 2x3 positions, and the Big Nitro reels count as 2-6 matching symbols of size 2x2. In addition, you have 5 Special Symbols that can appear at random times, and these come with the following modifier effects:

  • Redrop - removes all symbols except bonus scatters and Nitro Reels, and all Nitro Reel symbols reshuffle.
  • Both Ways - make wins count also from right to left, instead of just left to right.
  • Nitro Match - transforms Nitro Reel symbols on the same or adjacent reels to a symbol type that matches a symbol on an adjacent reel.
  • Nitro Upgrade - upgrades Nitro Reels on the same or adjacent reels, so they contain more symbols.
  • Nitro Wild - replaces all symbols in Nitro Reels on the same or adjacent reels with wilds.

You trigger the Bonus Round when you land 3, 4, 5 or 6 Zeppelin scatters anywhere in view, and this awards 8, 12, 16 or 20 free spins, respectively. Nitro Reels become sticky for the duration of the feature, and they stack on top of each other if they land on the same reel. The grid expansion is saved between free spins, via the Safety Level feature, but the grid still maxes out at 6x8.

This means that you don’t start all over again between Avalanche sequences, like in the base game, and a Super version of the bonus round triggers if at least one Super Bonus symbol is part of the triggering spin. The grid is then fully expanded from the get-go, and the Win Both Ways modifier is always active. You can retrigger the bonus round during both tiers of the feature.

Finally, non-UK players, and anyone living in an eligible jurisdiction, may take advantage of ELK’s innovative X-iter feature buy menu. It comes with the following options this time:

  • Boosted Bonus Chance - pay 2x your stake for a spin where the bonus round chances are doubled.
  • Big Nitro Reel - pay 10x your stake for a guaranteed Big Nitro Reel.
  • Nitro Match - pay 25x your stake for a guaranteed Nitro Match modifier with Win Both Ways active.
  • Bonus Round - pay 100x your stake for the regular free spins round.
  • Super Bonus - pay 500x your stake for the Super free spins round.

The 200 Spins Nitropolis 3 Slot Experience

You get a decent taste of the base game, with some nice grid expanding Avalanche sequences, before we purchase the Super Bonus Round at 1:28 into the 4:17-minute highlights video. We managed to rack up a decent amount of sticky Nitro Reels after a while, and you can see for yourself how we fared by hitting the play button below.

Review Summary

It was just a matter of time before ELK would merge the core grid-expanding element from their popular Gold/Kane series with their equally popular Nitropolis saga. This adds a whole new dimension to the already action-packed and win ways-increasing concept. The toxic beach setting is a welcome break from the usual dystopia, although the quirky post-apocalyptic atmosphere still seeps through all over the place.

Just like with many NoLimit City releases, it’s hard to keep track of everything that’s happening at any given moment, so you just have to surrender to the experience and hope for the best. Alternatively, you can cherry pick features from the X-iter menu. There’s more than enough new stuff to merit this 3rd installment, and the 50,000x potential is a new personal record for ELK by far. Overall, you get a chaotic, intense and insane ride with all the best this developer has to offer rolled into one.


  • Avalanche wins grid expansion up to 6x8
  • Up to 4x4 sized symbols and wilds
  • Nitro Reels and brand new Big Nitro Reels
  • 5 special modifier/upgrade symbols
  • FS w/ sticky stacked nitro reels
  • Super FS w/ 6x8 grid and win both ways
  • Win up to 50,000x your stake


  • RTP of 95 % is well below average

If you love Nitropolis 3 Slot you should also try:

Nitropolis - is the original hit release from ELK Studios, and it comes with up to 85,155,840 win ways. This is where the Nitro Reels feature was invented, and you can also look forward to several other features, as well as a sticky nitro reels bonus round with a 10,000x potential.

Nitropolis 2 - is ELK’s follow-up in the quirky dystopian series, and it’s an action-packed sequel to say the least. Up to 12 nitro reels can set the grid on fire with up to 191 million win ways, and you also get 8 different modifiers from the Nitro Booster top reel. The sticky nitro reels bonus round comes with the same 10,000x potential as the first game.

xWays Hoarder xSplit - is a somewhat similarly themed NoLimit City release, and it’s set in a dystopian post-apocalyptic future. This is where the xSplit Wild was first introduced, and together with xWays mystery symbols you can benefit from up to 95,760 win ways. The xWays symbols merge in the 4-level bonus round, and you can win up to 11,030x your stake.

Video and Image gallery

Nitropolis 3. Nitropolis 3 slot
Nitropolis 3
Start Screen. Nitropolis 3 slot
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Reels Screen. Nitropolis 3 slot
Reels Screen
Win Screen 1. Nitropolis 3 slot
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Win Screen 2. Nitropolis 3 slot
Win Screen 2
Bonus Buy. Nitropolis 3 slot
Bonus Buy
Free Spins 1. Nitropolis 3 slot
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Free Spins 2. Nitropolis 3 slot
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Free Spins 3. Nitropolis 3 slot
Free Spins 3

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Nitropolis 3 Slot FAQs

What is the RTP of Nitropolis 3?

The Nitropolis 3 RTP of 95 % is well below average, but at least ELK hasn’t succumbed to customizable RTP ranges.

How volatile is Nitropolis 3?

This is a high volatility installment from ELK, and it scores 7 out of 10 on their own volatility scale.

What is the biggest win possible?

You can win up to 50,000x your stake in Nitropolis 3, which is 5x higher than what’s on offer in the 2 previous installments. It’s also a new personal record for ELK, by a lot.

Are there any brand new features in Nitropolis 3?

Yes, the biggest difference is the Avalanche win row adding mechanic, making it possible to pile on 4 extra rows. In addition, you got larger symbols and wilds up to 4x4 in size, as well as 2x3-sized Big Nitro Reels packing up to six 2x2-sized symbols.

Is there a free spins mode in Nitropolis 3?

Yes, you get up to 20 free spins for starters, and all Nitro Reels are sticky. The ‘Safety Level’ saves your achieved row height between spins, and the Super version of the feature comes with a maxed out grid and win-both-ways from the get-go.

How many winning ways are available?

You can get up to millions of win ways in Nitropolis 3, but without any Nitro Reels the maxed out 6x8 grid comes with 262,144 win ways.

Can I play Nitropolis 3 Slot for free?

Yes, you can test the free Nitropolis 3 demo game at the very top of this page (UK players must verify age first).

Scanned Countries

US New Jersey

Sorry, Nitropolis 3 is not available for this market. In total, we scanned casinos at 53 in various markets. Nitropolis 3 is available in 43 countries. The markets with the highest number of casinos are: FI, NO, GB, NZ

Country Scanned [i] With Game [i] In Lobby [i] SlotRank [i] Action
Finland FI 577 274 11 94 See Data
Norway NO 452 219 7 156 See Data
United Kingdom GB 665 201 0 1659 See Data
New Zealand NZ 442 201 3 776 See Data

Browse All Countries (43)

Game Is Hot
Game Is Hot

Game RTP: 95%

SRP [ i ] : 135.15%

RTP +40.15%

For Last 4 Hours:

Spins: 646

Bets (EUR): 214€

Wins (EUR): 286€

Nitropolis 3 Attributes

Provider: ELK Studios
Release: 25.03.2022 [ i ]
Wide release date: 2022-04-04
Type: Video Slots
RTP: 95%
Variance: HIGH
Hit Frequency: 19.2
Max Win: x50000.00
Min bet $, €, £: 0.2
Max bet $, €, £: 50
Layout: 6-4 [ i ]
Betways: 4096 (Bothway)
Features: Avalanche / Cascading wins, Buy Feature, FreeSpins, Level Up, Mega Symbol (3x3), Random Wilds / Additional Wilds, Reelset Changing, Respins, Scatter symbols, Symbol Swap, Wild
Theme: Apocalypse, Beach
Objects: N/A
Genre: Post-apocalyptic
Others: Gray, Green, Animals, Cats, Dogs, Mouse
Mobile: No
Technology: JS, HTML5
Game Size: 10 MB
Last Update: 26.11.2022
Articles: Summer Slots

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