|ELK Studios|2020-11-03|RTP: 96.10 %
Home » Game provider » Elk » Nitropolis
Game provider
ELK Studios
Feature Buy
Game type
Video Slots
Mobile version
Grid slot
Sticky wilds
Free spins
Bonus game
Progressive jackpot
Min. bet
Random Feature
Max. bet
Maximum win
Last update
May 22, 2021


3 votes - 4.00/5.00

Do you have what it takes to become the ruler of Nitropolis on the slot from Elk Studios? The dystopian metropolis is run by four furry gangs – The Dirty Dawgs, the Gritty Kitty’s, the Pug Thugs and the Rouge Rats – each vying to control the precious green Nitro fuel that powers their post-apocalyptic automobiles. Get ready to race them across a chaotic 6×4 reel set that can deliver over 85 million ways to win courtesy of special Nitro Reels, award respins and trigger free spins with scatter pays and sticky symbols that can lead to wins of up to 10,000 times your bet.

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Slot Details

Nitropolis is a video slot with six reels, four rows and 4,096 ways to win as default. Throughout the gameplay, Nitro Reels can be triggered to create up a staggering 85,155,840 ways. You can face the furry gangs on desktop, tablet or mobile from 0.20 to 100 credits per spin. The game has high volatility (8/10) with an estimated RTP of 96.10% and an average hit rate of roughly 1:5 spins.

A dystopian city in a post-apocalyptic future is opening up when you load the game. High-rise towers dominate the tristesse and project an eery light onto the scene in the free spins. The four furry protagonists populate the reels, racing each other in a quest to rule over who controls the precious green Nitro fuel. The soundtrack is one of the best I have ever heard on a slot. It feels as if a world-class DJ is mixing a EDM piece live while you spin the reels, intermittently interrupted by comical dog barks and voices.

The pay symbols start at the low end with card royals from J through to A, awarding across the board 0.5x your bet for a single six of a kind. They are followed by four gang badges – The Pug Thugs in blue, The Rouge Rats in green, The Gritty Kitties in pink and The Dirty Dawgs in red on the medium level. Six across the reels will yield between 1.2x and 1.6x your stake. The premiums are the protagonists themselves – rat, pug, kitty and dog – in ascending order on an icon with matching colours to their badges. Six on a bet way will pay 3x to 5x your bet. An explosion plum marked with the word itself is the wild symbol, substituting for all regular symbols and also worth 5x your stake for six. A nitro car engine acts as the bonus scatter. They can appear on Nitro Reels but will count as a single scatter only.

Nitropolis Slot Features

Elk Studios is very good at building a storyline around their slot creations which leaves us always guessing as to where they will take us next. It applied especially to their Gold series where we went from Ecuador to Tahiti and from Lousiana, USA on Voodoo Gold to Yellowknife on Black River Gold before heading to Katmandu on their upcoming December 2020 release. However, for now, we are taken to Nitropolis, a city in a post-apocalyptic world run by four furry clans. The protagonists will create chaos across a dynamic reel set that can grow from a standard 4,096 ways to a staggering 85,155,840 ways during the gameplay.

Nitropolis Screenshot

The reel mayhem on Nitropolis starts when you land any win during the base game and free spins as it will trigger the Winning Respins feature. Once initial pays are evaluated, all symbols and Nitro Reels that were part of the combo will respin again and again as long as new wins occur. All is reset at the end of a spin sequence and the accumulated win paid.

The mayhem turns into madness when Nitro Reels land anywhere on the screen. They will always cover two vertical reel positions and unveil 4, 6, 8, 10 or 12 identical symbols, thus creating more ways to win, up to the maximum of 85,155,840. Different Nitro Reels do not necessarily contain the same symbol. A small display on top of the Nitro Reel will show the current number of symbols while a second one at the top of the game window indicates the current number of ways to win. Might get somewhat chaotic at times, so fasten your virtual seatbelt as there is more.

  • Upgrade: Any Nitro Reel can randomly add more symbols up to the maximum of 12 during a respin or between free spins.
  • Second Chance Respin: All Nitro Reels in view can randomly respin once no more wins occur.
Nitropolis Free Spins

Having three, four, five or six bonus symbols anywhere on the reels will trigger 10, 15, 20 and 25 Free Spins respectively, which can be indefinitely retriggered with the same combinations. No coins wins are awarded for scatters. Two additional twists will be active throughout the bonus round and most probably will be the source for most mega wins on Nitropolis.

  • Locked Nitro Reels: Any Nitro Reel landing on a free spin will stay locked in place for the reminder of the bonus round.
  • Scatter Pay: One pay symbol is randomly selected at the start of the bonus round to award scattered pays when sufficient land on a free spin.

Not to forget, the two random Upgrade feature can also trigger on any free spin to add more symbols to the respective Nitro Reel until it reaches the maximum of 12. The bonus round ends when you run out of spins or hit the maximum win cap of 10,000 times your bet.

Nitropolis Bonus Buy

Update 28th January: Elk Studios added a Bonus Buy option to Nitropolis, although it will be restricted in some jurisdictions. You can now skip the wait for an organic trigger and choose between a standard Free Spins Bonus for 100 credits or a Super Bonus for 300 credits. The RTP remains unchanged.

Final Verdict

Well, Elk Studios promised chaos when they announced the Nitropolis slot and that is pretty much what they delivered. Even more experienced players won’t have the foggiest as to what is going on at times, especially when multiple Nitro Reels land simultaneously. But it all combines well together to deliver an intense gaming experience with a comical touch. The question that remains is how often we will see the maximum 85 million ways. I venture to say, nearly as rare as snow in the desert.


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