Nitropolis Slot Review

Our score 4.5 4.5 /5
User rating
RTP: 96.1%
Volatility: 8 of 10
Paylines: +20

Nitropolis by ELK Studios features a post-apocalyptic world where four clans battle it out for dominance and the essential nitro fuel, the original characters and storyline are backed up by some exceptional and unique gameplay.

Theme Fantasy
No. of Reels 6
Game type Video Slot
Release Date November 2020
Bonus Rounds No
Software provider ELK Studios
Scatter Yes
Free spins Yes

Demo game / trailer title

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From the opening titles onwards, you know you are in for an exciting gaming experience when you play Nitropolis by ELK Studios (released in November 2020). Set in a post-apocalyptic world where four clans battle it out for dominance and the essential nitro fuel, the original characters and storyline are backed up by some exceptional and unique gameplay.

This includes the Nitro Reels feature, a free spins bonus round, and automatic Winning Re-spins feature, all providing plenty of payout opportunities — especially as there can be as many as 85,155,840 ways-to-win in play. A high volatility slot with a 96.1% RTP, Nitropolis has a jackpot worth up to 1,000,000 coins and so is also one of the most lucrative games around. If you enjoy innovative, fast-paced gaming action, plus original stories and characters, then check out Nitropolis at our recommended UK slots sites.

How to play

Nitropolis is a 6 reel, 4 row online slot with 4.096 ways-to-win in play during base play, which can expand to 85,155,840 ways to win when the Nitro Reels are in play. Each bet is considered to be worth 100 coins, and wagers range in size from £0.20 to £100 per spin, with wins paying in any combination from left to right on adjacent reels. Like other ELK Studios slots, you can choose to have one of four automatic betting strategies in place — Optimizer, Leveller, Booster or Jumper.

  • Wild symbol substitutes for all other symbols, except the Bonus symbol.
  • During free spins bonus round, Wild symbol can feature in any Scatter win.
  • After a winning spin, the symbols in the winning combination automatically re-spin, potentially creating new winning combinations. If a win is triggered, the winning symbols will spin again, and this continues until there are no more winning combinations.
  • Hitting 3x, 4x, 5x or 6x Bonus symbols triggers the free spin bonus round.
  • Hitting 5x Red Dirty Dawg = 5x total bet (up to £500).
  • Hitting 5x Purple Gritty Kitty = 3.6 x total bet (up to £360).
  • Hitting 5x Green Thug Pug = 3.4 x total bet (up to £340).
  • 5x Blue Rogue Rat = 3x total bet (up to £300).

Jackpot

The maximum payout on Nitropolis is 1,000,000 coins, or £1,000,000 when betting the max, and the jackpot can be won either during base play or the Free Spins Bonus.

Special features

Nitro Reels

Nitro Reels is an innovative new mechanic that takes the concept of expanding and sticky wilds to a new level. When a Nitro Reel appears on any reel, it automatically takes up the space of two regular symbols. At the top of each Nitro Reel symbol is a number — 4, 6, 8, 10 or 12 — and this indicates how many of that symbol are considered as being in play, e.g., if you hit an A symbol and Nitro Reel shows the number 12, then there are 12 A symbols in play, increasing the ways to win on that spin.

In addition, a Nitro Reel can randomly upgrade (i.e., increase its number value) both during a re-spin after a win or between spins in the Free Spin bonus round. With the Second Chance feature, a Nitro Reel can randomly re-spin after a losing spin and potentially create a winning combination.

Free Spins Bonus Round

The Free Spins Bonus round is triggered by hitting 3x, 4x, 5x or 6x Bonus symbols, with the number of spins being determined by the number of Bonus symbols that activate the feature:

  • 3x Bonus symbols = 10 free spins
  • 4x Bonus symbols = 15 free spins
  • 5x Bonus symbols = 20 free spins
  • 6x Bonus symbols = 25 free spins

Additional free spins can also be triggered during the bonus round in the same way.

During the free spins bonus, one symbol is randomly selected as a Scatter, with 3x or more being required to pay a Scatter win, while all Nitro Reels in play when the bonus is triggered remain in place.

Graphics and Sounds

This is one of the fastest moving, most action-packed slots around, with something always happening on the reels.

The characters are based on four clans — Dirty Dawg (red), Gritty Kitty (purple), Thug Pug (green) and Rogue Rat (blue) — each represented by its leader in a gritty yet fun comic book style. The game is set in a menacing looking refinery that produces Nitro Fuel, the commodity the clans are battling over to fuel their cars and has echoes of both the Mad Max and Fast & Furious film franchises.

The original soundtrack is upbeat and features some nice mood changes, while the sound effects are especially dynamic when the free spins are triggered and during the bonus round.

Conclusion

If you enjoy gentle, straightforward gameplay with minimal special effects, the Nitropolis is not the game for you. The Nitro Reels and Winning Re-spin features mean that the parameters of the game are constantly changing, while the Upgrade and Second Chance features can see a single spin produce win after win. The speed of the game is unrelenting and this is one of the biggest reasons for its popularity. Of course, there is also the potential for huge payouts, with a maximum jackpot won of 1,000,000 coins up for grabs, and this adds considerably to game’s appeal.

Overall, we consider Nitropolis one of the most exciting slot game releases of recent times and recommend anyone who enjoys fast action and original, stylish graphics to check it out at our recommended UK slot sites.

Updated March 31, 2022

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