ELK Studios Logo
Provider: ELK Studios
RTP: 94%
Launch Date:
  • Provider: ELK Studios
  • Type: Video slots
  • RTP: 94%
  • Reels & Paylines: x / x
  • Bonus Game: yes 
  • Max Multiplier: x
  • Min Bet Size: $0.2 
  • Max Bet Size: $50
  • Max Winnings: win of x50,000 times
  • Launched: x

Nitropolis 4 review

Nitropolis 4 Logo

Nitropolis 4 Slot Review

The gang is back together again to continue their business in the fourth part of Nitropolis. Join them and try your luck on 6 reels and 4 rows. The reels expand, and the bonuses multiply your winnings, so you can win up to x50,000.

Graphics and Interface

This time, the animals are mining for resources, and the visuals are impressive. We see bright colors, high-quality graphics, and charismatic characters. The sound doesn’t disappoint either. Industrial tracks play in the background, complemented by the voices and sounds of the streets. 

The user interface is clear, and even beginners can figure it out. The start button is located on the right, and the bet icon is on the left. First, try the demo version and familiarize yourself with the slot. When you’re confident, play for real money. 

Device Compatibility

As always, the slot is supported on PC, but is it possible to play on mobile devices? Elk Studios took care of this and used HTML5 in the development. Thanks to this, you can also play Nitropolis on phones and tablets. Windows, Mac, Android, iOS, and other popular operating systems are supported. 

Nitropolis Device Compatibility

How to Play

When you’re ready, click the round arrow in the lower right corner. You can also choose Auto Spins, so you don’t have to click the button every time. Just specify the desired number of spins from 10 to 100. To place a bet, click on the coins on the left. The available range is from $0.2 to $50.

The menu contains all the necessary information. To see it, click on the three bars on the top left. Here you can find the rules of the game, the payout table, general settings, and active bonuses from the casino you’re playing at. 

Symbols and Pay-table

There are sixteen symbols in total: some of them are standard, and others have special functions. Traditionally, playing cards bring the lowest payouts. Check them out in the table below. Themed logos are more valuable and promise payouts from x0.15 to x1 per bet. Animals pay out the most, so keep an eye out for a rat, a pug, a cat, and a dog. Wilds, multipliers, and other bonus symbols don’t pay out.

3 4 5 6
Dog x1.5 x2 x2.5 x3
Cat x1 x1.25 x1.5 x2
Pug x0.75 x1 x1.25 x1.5
Rat x0.5 x0.75 x1 x1.25
Dirty Dawgs, Gritty Kitty x0.2 x0.3 x0.5 x1
Pug Thugs, Rogue Rats x0.15 x0.25 x0.4 x0.8
A, K, Q, J x0.10 x0.15 x0.2 x0.3

Nitropolis 4 Bonus Features

The developers have taken care to include a number of interesting surprises in Nitropolis 4:

  1. Avalanche mechanics. If you win, the symbols from the combination disappear and are replaced by new ones, giving you an opportunity to collect another winning combination. Another row also appears at this moment, significantly increasing your odds. You can get up to 8 rows in total.
  2. Big symbols. 2×2 and 3×3 mega symbols appear randomly on the reels from time to time.
  3. Nitro reels. These also appear randomly and occupy two positions, containing from 4 to 12 standard symbols. There are also large nitro reels that occupy six positions and contain 2×2 symbols.
  4. Nitro Multiplier. The symbol occupies two positions on the playing field and can provide multipliers ranging from x4 to x12, significantly increasing your winnings.
  5. Nitro Booster. Screens above the playing field display boosters from time to time, which have a positive effect on the game. However, it remains a mystery which booster you will get.
  6. Bonus game. From 3 to 6 bonus symbols activate free spins. During this feature, the reels become sticky and can expand. You can get from 8 to 20 spins. 

Nitropolis Bonus Game

RTP & Volatility

RTP and volatility directly affect the chances and amount of winnings in the long term. Nitropolis 4 has an RTP of 94%, which is slightly below average. The variance of the slot is high and is estimated at 8 out of 10 points. The volatility affects the frequency of wins, with high volatility providing rare but large payouts and low volatility providing stable but small payouts. 


Nitropolis 4 breaks the norm of most trilogies by delivering a high-quality slot game. Elk Studios did not disappoint and presented their fans with a high-quality slot. As always, the graphics are impressive, and it is quite difficult to look away from the city in the background. There are many details that you want to see. Cartoon animals fit into the atmosphere and add humor, which distinguishes the game from others. 

In this part, Nitropolis is made even more chaotic with a huge number of symbols. You will find multipliers, modifiers, wilds, avalanche mechanics, and more standard wilds and free spins. There are plenty of opportunities to win, despite the RTP. The indicator may stop some players, but the RTP is compensated by the bonus features. If you’re up for a challenge, try your luck and search for riches. You might just be the one to win the maximum x50,000 payout. 


What bets are possible in Nitropolis 4?

You can bet between $0.2 to $50, with a maximum win of x50,000 times the initial bet. 

Does the slot have any bonus features?

Yes, you will find expanding reels, free spins, wilds, multipliers, and many more features. 

Can I play Nitropolis 4 on my phone?

Yes, the slot is supported on Android and iOS mobile devices. 

Where can I play Nitropolis 4?

The game is available in most casinos, and you can also try a demo version. You can find the slot on the official website of Elk Studios as well.