Released: 21 Apr 2021

Go back to the dystopian world for another apocalyptic reel mission with Nitropolis 2 slot. Powered up by ELK studios, this sequel is a follow up of the successful Nitropolis game, a story about a city where pugs and cats rule the streets. The dynamic 6-reel engine starts with 4,096 ways to win and can reach more than 191 million during the bonus game. The main novelty in the Nitropolis 2 slot is the Nitro Booster feature, where symbols land with up to 8 reel modifiers, giving you an exciting and dynamic spin time. As the cherry on top of it, you have the free spins game that offers you a chance to get closer to the maximum prize of 10,000x your bet. Find out more in our detailed Nitropolis 2 slot review.


Nitropolis 2 Slot

Nitropolis 2 Slot Review

ELK Studios are back with a follow-up for their famous reel city vice Nitropolis, called Nitropolis 2. The developer did not want to lose time and released the sequel just months after the first title, giving you a complete picture for their slot vision.
The Nitropolis 2 slot sticks to the traditional design and mechanics while introducing few new features you can rely on as soon as you join the crew. First, there’s a chance to get to a point where you’ll play with 191 million ways to win! Impressive, right? The new addition in this game is the Nitro Booster row that offers up to 8 modifiers that change the pace of the reel play.
Of course, you have a chance to play with the familiar free spins bonus game and re-spin the reels after a winning sequence. So, without further ado, let’s go through the specifications, math model and win potential in our review below.

About Nitropolis 2 Slot

The Nitropolis 2 slot by ELK Studios continues the story about the apocalyptic city Nitropolis, ruled by a gang of notorious dogs and cats. The action takes place on 6 reels, 3 rows with starting 4,096 ways to win. You’ll form a win as soon as you match at least 3 more symbols on adjoining reels from left to the right.

You can spin the reels and join this reel adventure by placing your bets in the range of £0.20 - £100/spin. Since this is suitable even for those that prefer to keep their stakes low, you can easily adjust your preferences in the settings bar below the reels. The most you can win in the Nitropolis 2 slot is set at 10,000x your stake – the same amount that offers its predecessor.
The key to big wins starts with the Nitro Reels feature, which increases the number of ways to win, where two reel positions can contain up to 12 symbols. But, we’ll discuss more on that in a bit. Now, let’s see what’s new in terms of the design and visual aspect.

Design, Symbols and Graphics 

Set in the dystopian world where cyborgs and animals rule the world, the Nitropolis 2 slot is a blend between a comic book and an 80’s film about the future that’s expecting us. With a dirty, neon finish to the graphics, we’re sure you’ll find it visually pleasing and innovative. Those of you who have checked the San Quentin or Punk Rocker slot will find many similarities in terms of the template. The hip hop music in the background uplifts the atmosphere as you get familiar with the animal clans.
On the paytable, we have the A-J royals alongside 3 Wanted posters of Pug Thugs, Gritty Kitty and Dirty Dawgs. The Pest Control symbol is new to the paytable, while the higher value symbols are the Pug, Kitty and Dawg crew members. The most rewarding symbol is the Pest Sergeant that pays 1x your bet for six of a kind.
Even though the symbols may not be that rewarding on their own, the bonus features and in-game extras deliver impressive wins and boost your payout throughout the game. The "no dog fouling" sign is the game’s wild symbol that substitutes all other symbols except the car scatter.  

RTP, Variance and Payouts for Nitropolis 2 Slot 

The theoretical RTP (Return to Player) of the Nitropolis 2 slot is 95%, which is below the industry average compared to other slots, including the original Nitropolis title. The hit frequency is set around 20%, so basically, every fifth spin will be a winning one. However, don’t take this info for granted, as the situation may vary for every player out there.
The variance is high, meaning that you should expect less frequent but bigger wins during gameplay. The maximum you can win here is set at 10,000x your bet in a single spin. If you want to learn more about RTP and variance models, read our detailed Variance, Volatility and RTP guide.

Gameplay and Features on Nitropolis 2 Slot 

A lot is going on when it comes to the bonus features in the Nitropolis 2 slot. Alongside the familiar winning re-spins, Nitro Reels and Free Games, you’ll have a chance to play with a new feature that has the power to modify the reels and the way they act during gameplay. Let’s see what these games have on offer as we reveal the details behind them. 


Nitro Reels 

The Nitro Reels feature can come into play randomly on any spin. These reels cover two positions from the reel and can contain up to 12 symbols. For example, if you have 8 symbols, you’ll see 8 1x1 symbols appearing across the border of those two positions. The bar above the reels indicates with how many ways to win you’re playing. Each reel can contain a maximum of 24 symbols, enabling you to play with 191,102,976 ways to win. Yes, there are a lot, we know it.

Winning Re-spins

Re-spins will come into play as soon as you land a winning combination on the grid. Then, all symbols and Nitro Reels that have been part of the win will re-spin individually, while the other symbols will remain in place. This gives you an additional opportunity to land a win again and boost your payout. Re-spins will continue as long as you form new wins.

Nitro Booster

This is a new bonus feature available only in the Nitropolis 2 slot. As soon as you start the game, you’ll notice an additional row above the reels, marked with fuel tank symbols. On these positions can land up to 8 modifiers that influence the overall reel action. Here’s what you can expect:

  • Respin - Nitro Reels and bonus symbols become sticky, and you win a respin
  • Pay both Ways – you can form wins both ways
  • All Match – all Nitro reels match with a symbol on the reel to the left
  • All Wild – all sticky and Nitro Reels contain only wild symbols
  • Nitro Wild – Nitro Wilds landing in the same column will contain wilds only
  • All Premium – all Nitro reels will contain only high-value symbols
  • Nitro Match – Nitro Reels match up with a symbol on the reel to the left
  • Nitro Upgrade – more symbols are added to the Nitro reels in the column

Free Spins

This bonus game is triggered by landing 3 or more car scatters on the grid. The more bonus symbols you land on the grid, the higher the number of free spins will be. So, for 3, 4, 5 and 6 bonus symbols, you’ll win 10, 15, 20 and 25 free spins, respectively. Once you’re here, all existing Nitro Reels will be locked in their position.
You can trigger the Nitro Booster feature during this game to give you only high-value symbols, wilds, or Both Ways wins. There’s also a chance for you to win additional free spins if you land more bonus symbols on the grid.

Nitropolis 2 Slot on Mobile

The Nitropolis 2 slot is optimised to work on all mobile devices, and it loads on any operating system without issues. ELK Studios built this game with HTML5, which makes it adjustable on any mobile. The quality design, gameplay, and bonus features work perfectly on a smaller screen.


Other ELK Studios Slots 

If you like the concept and reel experience that this slot game offers, check out other titles produced by ELK Studios and compare their model, win potential and bonuses. We’ll recommend the Bompers slot for those of you that like the re-vamped disco look of a classic fruit title. The reels are powered by the innovative gravity mechanic and packed with a few bonus features to win up to 5,000x your bet.
The Knockout Diamonds slot, on the other hand, allows you to participate in a rather different boxing match, where you’ll play with Knockout Free Spins, Multiplier Wilds and symbols that can pay up to 100x your bet.

Or, you can dance along with the spreading wild symbol in the Miss Wildfire slot and end up playing with different Wildfire bonus games and Free Spins that can get you closer to a prize worth 5,000x your bet.

SlotsWise Verdict 

The Nitropolis 2 slot is quite similar to the original but much better when it comes to the bonus gameplay. The minor adjustments and the introduction of the Nitro Booster feature is just what was needed for a sequel of this type. We enjoyed the testing process, and we recommend turning up the music volume for a fantastic reel ride through Nitropolis city. Give this slot game a spin and meet the future for a chance to win up to 10,000x your bet.

Explore the Nitropolis 2 slot by claiming a welcome offer right from this page and play at top-rated online casinos.

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