Pug Thugs of Nitropolis Slot

Based on our expert’s review. Reviewed by
ELK Studios Slot Reviews
Review by
Martin Backhouse
Updated: 08/05/2024
Review by
Martin Backhouse
Updated: 08/05/2024

A canine warrior preparing for the final battle in the futuristic city of Nitropolis is the unlikely back story to Pug Thugs, the latest feature-filled instalment in the Nitropolis series of video slots from ELK Studios. Played using a 6-reel machine, it comes with paylines that start on all 4 edges. Nitro Reels take up a single position but can feature up to 8 symbols. Look out too for Feature Screens which can award 4 different mini features. There’s also a free spin bonus, complete with Nitro Reels on each spin. With a 94% RTP and a 25,000 x stake max win, find out more in my detailed Pug Thugs of Nitropolis review.

Max Win
25,000 x bet
T&Cs Apply

18+. New depositors only. UK residents only. Minimum deposit $10. Free Spins are valid only on Starburst and expire in 7 days. 10x wagering apply. Certain deposit types are excluded. T&Cs apply. #ad

ELK Studios
Type of Slot
Grid Slot
6x6 Grid
Connecting Paylines
Stakes Range
20p to £100
Bonus Features
Free Spins/Multiplier
Max Win
25,000 x

Pug Thugs of Nitropolis Demo

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T&Cs Apply 18+. New depositors only. UK residents only. Minimum deposit $10. Free Spins are valid only on Starburst and expire in 7 days. 10x wagering apply. Certain deposit types are excluded. T&Cs apply. #ad
18plus uk-gambling-commission online-slot-co-uk-logo agechecked-verification-provider
T&Cs Apply 18+. New depositors only. UK residents only. Minimum deposit $10. Free Spins are valid only on Starburst and expire in 7 days. 10x wagering apply. Certain deposit types are excluded. T&Cs apply. #ad

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Pug Thugs of Nitropolis Slot RTP, Details & Wager Limits

Reels/Paylines: 6×6 grid + connecting paylines

Stakes Range: 20p to £100 per spin

Max Win: 25,000 x stake per spin

RTP: 94%

The set up in Pug Thugs of Nitropolis is a little unusual. The reels are set up in a 4x6x6x6x6x4 formation. Create winners by landing matching symbols or wilds on adjacent reels. These winning combinations can stop from the top, bottom, left and right reels.

You can join the action here at bet levels of between 20p and £100 per spin. Click on the coins icon then pick from the bet levels shown.

If you’re in a jurisdiction where it’s allowed, autoplay is available. You can set up to 100 autospins. There’s also a quick play mode if required. Neither of these options are available to players in the United Kingdom though.

The Pug Thugs of Nitropolis is just 94%. That’s well below the average for a slot game which comes in at around the 96% mark at UK slot sites. The game’s hit frequency is 24.8% so on average, a winning combination hits on just over a quarter of spins. The Pug Thugs have some bite go with their bark when it comes to variance. The volatility here is 8/10 which puts it in the high category.

The Pug Thugs maximum win is 25,000 x stake.

Theme: a typical, gritty, urban setting

Theme: Animal

High-Value Symbol: Pug

Compatibility: Mobile, Tablet, Desktop


A blimp overlooking the futuristic Nitropolis skyline is the setting for Pug Thugs. Flanked by an assortment of weapons, tools, barrels and pulleys, there’s an industrial and militaristic feel to the visuals here.

That style continues with the symbols. Joining the A to J royals are rocket launcher, computer, rocket and pug symbols. They’re done comic book style and stand out quite nicely against the rather dark backdrop.

The blimp bonus symbol is the scatter. Landing 3 or more of these on the same spin triggers the free spins feature which I’ll look at below.

Punctuating the synth rock-style soundtrack are wailing sirens and indistinct walkie-talkie chatter which adds to the rather intimidating atmosphere.

There’s a gritty, urban feel to the design here which works well.

Here’s what the symbols pay:

Symbol Payouts/Info
pug-thugs-of-nitropolis-slot-j-symbolJ 3, 4, 5 or 6 = 0.1, 0.2, 0.4 or 0.5 x stake
pug-thugs-of-nitropolis-slot-q-symbolQ 3, 4, 5 or 6 = 0.1, 0.2, 0.4 or 0.5 x stake
pug-thugs-of-nitropolis-slot-k-symbolK 3, 4, 5 or 6 = 0.2, 0.3, 0.6 or 0.7 x stake
pug-thugs-of-nitropolis-slot-a-symbolA 3, 4, 5 or 6 = 0.2, 0.3, 0.6 or 0.7 x stake
pug-thugs-of-nitropolis-slot-rocket-launcher-symbolRocket Launcher 3, 4, 5 or 6 = 0.3, 0.5, 0.8 or 1 x stake
pug-thugs-of-nitropolis-slot-computer-symbolComputer 3, 4, 5 or 6 = 0.4, 0.6, 0.9 or 1.2 x stake
pug-thugs-of-nitropolis-slot-jet-pack-symbolJet Pack 3, 4, 5 or 6 = 0.5, 0.7, 1 or 1.5 x stake
pug-thugs-of-nitropolis-slot-pug-symbolPug 3, 4, 5 or 6 = 0.75, 1, 1.5 or 2 x stake
pug-thugs-of-nitropolis-slot-bonus-symbolBonus 3+ trigger free spins feature
pug-thugs-of-nitropolis-slot-super-bonus-symbolSuper Bonus This plus 2 Bonus symbols triggers Super Bonus
pug-thugs-of-nitropolis-slot-nitro-wild-symbolWild Substitutes for all except Bonus symbols

Pug Thugs of Nitropolis Mobile


You can play Pug Thugs on a variety of handsets including tablets and smartphones as well as desktop and laptop computers. There’s quite a lot going on here both in terms of design and gameplay and it’s a game I preferred playing on a device with a larger screen but ELK delivers on superb mobile gameplay.

Pug Thugs of Nitropolis Bonus Features

ELK Studios has packed plenty of variety into Pug Thugs of Nitropolis. Nitro Reels can deliver massive symbol stacks and four Feature Screens can randomly trigger a mini feature. There are also Free Spins and Super Free Spins bonuses.

Nitro Reels

A Nitro Reel is a single position on the reels. Instead of just being worth a single symbol though, it can be worth the equivalent of a stack containing up to 8 symbols. The Nitro Reels can upgrade too which adds even more symbols to the stack. Nitro Reels can only appear in the central 4×4 block on the game grid. Create Nitro Reels by landing winning combinations that intersect.

Feature Screens

The four corner positions are the Feature Screens. These can trigger at random on any spin. It’s possible to land more than one Feature Screen on the same spin.

  • Make Big! – A random symbol turns into a 2×2, 3×3 or 4×4 symbol block. A new payout consideration is made with the expanded block in position.
  • Collect – This is a streak re-spin bonus. Look out for special coin symbols which are added together and collected to give a total prize.
  • Nitro Wilds – Nitro Reels are turned into wild reels when this feature triggers.
  • Nitro Match – One symbol is picked at random. All active Nitro Reels on the grid are filled with the same symbol.

Nitro Insane

This can also randomly trigger at the start of any spin. Once active, a random number of Nitro Reels are added.

Bonus Game

Trigger the main feature round by landing 3 or more Bonus symbols on the same spin. You’ll then receive 6 free spins (with more added for each extra triggering Bonus symbol). The Nitro Insane Feature hits at the start of each free spin so you’ll see plenty of Nitro Reels. It’s possible to land the Feature Screen extras during the Free Spins Bonus too. Re-triggers are possible too.

Super Bonus Game


If the triggering spin includes a Super Bonus scatter alongside two standard scatters, you’ll activate the Super Free Spins feature. The big upgrade in Super Free Spins is that Nitro Reels become sticky and remain active for the rest of the round once they have hit. Once again, Feature Screen extras and re-triggers are possible.

X-iter feature

Players in some territories can buy a bonus. There are 5 options available.

Mode Cost Description
Bonus Hunt 3 x bet More than triples the chance of triggering the Bonus Game.
Nitro Insane 10 x bet Guaranteed to trigger the Nitro Insane feature on the following spin.
Nitro Insane + Feature 25 x bet You’ll trigger the Nitro Insane feature plus a Feature Screen bonus.
Bonus Game 100 x bet Entry to Free Spins feature.
Super Bonus Game 500 x bet Trigger the Super Free Spins bonus feature.

Pug Thugs of Nitropolis Verdict: another exciting trip to Nitropolis

Based on our expert’s review. Reviewed by
Pug Thugs of Nitropolis Slot

There’s no slowing down with this series of slots, and ELK has delivered again to bring you action-packed features and superb gameplay.

  • 25,000 x bet max wins
  • Great sound and visuals
  • Plenty of bonus features
  • 94% RTP rate is low

Pug Thugs shares many similarities with ELK Studios’ other Nitropolis-set slot. The game has a gritty, urban and slightly futuristic look which is nicely done.

There’s a familiar feel to the extras on offer here too. Pug Thugs offers plenty of variety and the Feature Screens liven things up on a regular basis. I found the free spins, and especially the Super Free Spins offered the best opportunities. Don’t expect to see the Super Free Spins too often though.

Like the other slots in the series, the Pug Thugs of Nitropolis RTP of 94% is a little underwhelming. The 25,000 x max win stacks up pretty well though.

I rather enjoyed Pug Thugs. The sound and visuals are excellent, and the gameplay offers more than enough variety to keep things interesting.

If you’ve played and enjoyed the other Nitropolis slots, expect more of the same in Pug Thugs.

Alternatives to Pug Thugs that are set in ELK’s fictional city include Dirty Dawgs of Nitropolis, Rogue Rats of Nitropolis and Gritty Kitty of Nitropolis.

Pug Thugs of Nitropolis FAQs

What is the Pug Thugs of Nitropolis RTP?

The Pug Thugs of Nitropolis return to player rate is 94%. That’s quite low.

What is the Pug Thugs of Nitropolis max win?

The most you can win here is 25,000 x stake.

Are there any Pug Thugs of Nitropolis free spins?

Trigger the bonus round and you’ll receive a minimum of 6 free spins. The Nitro Insane feature triggers on each free spin.

Is there a Pug Thugs of Nitropolis demo?

Yes, the Pug Thugs of Nitropolis demo can be played here at Online-Slot.co.uk. Prepare for the final battle of Nitropolis on mobile, tablet and/or desktop devices.

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