Nitropolis 4

ELK Studios
Nitropolis 4 Nitropolis 4
Edge:  6.00%

The creepy cast of Nitropolis is back for the fourth instalment of their slot game series - head off on an oily adventure when you play now.

Nitropolis 4 is a 6-reel game from ELK Studios . In this game, the crazy animal characters have taken over an abandoned oil rig and are here to cause chaos! You can look forward to a slot jam-packed with special features and the chance to win up to 50,000x your bet.

If you enjoyed the first three games in the saga , Nitropolis , Nitropolis 2 , and Nitropolis 3 , you’d be familiar with the characters, but there are some new special bonus features in this upgraded online slot game .

Discover the Gritty Kitty, Rogue Rats, Pug Thugs, and Dirty Dawgs in Nitropolis 4 by ELK Studios, available to play at Stake online casino .

Nitropolis 4 Slot Gameplay & Overview

Featuring a menacing soundtrack, and graphics to match, Nitropolis stars an array of shady animals, so you'll be looking out for symbols like a hairless cat, a pug with a helmet, and the highest-paying symbol of the terrifying doberman.

A wild symbol can substitute for any symbol except the bonus or super bonus symbol, and a payline of all wild symbols pays out the highest-value symbol.

Several special features like bonus spins, big symbols, and the X-iter allow you to purchase your way into a specific part of the game.

Symbols and Paytable

The Nitropolis 4 paytable illustrates the wins you can expect in the base game.

Symbol 3 4 5 6
A, K, Q, J 0.10 0.15 0.20 0.30
Green & Blue Symbols 0.15 0.25 0.40 0.80
Pink & Red Symbols 0.20 0.30 0.50 1.00
Rat 0.50 0.75 1.00 1.25
Pug 0.75 1.00 1.25 1.50
Cat 1.00 1.25 1.50 2.00
Doberman 1.50 2.00 2.50 3.00

Big Symbols & Mega Symbols

Big symbols cover larger areas of the game grid and can appear on any spin or symbol drop. Super Symbols are 2x2 in size, while Mega Symbols are 3x3.

Nitro Reel & Nitro Match

Nitro Reels cover two symbol positions and contain up to 12 payout symbols, while Big Nitro Reels cover a massive six symbol positions. This increases your number of ways to win, in the same way as a Megaways slot might. The Nitro Wild feature fills the Nitro Reel with wild symbols.

There is also a Nitro Match feature, where an existing Nitro Reel matches the current symbol in view to deliver a payout.

Nitro Multipliers

Nitro multipliers cover two symbol positions and multiply all wins in view by up to 12x.

Nitro Booster

The Nitro Booster adds one of eight different features to the main reels. For example, in the Redrop feature, all standard symbols are removed, and new symbols drop into their place; the Both Ways feature pays winnings from right to left as well as left to right, and the Max Rows feature expands the game grid to the maximum of eight rows.

Bonus Game

If you land three of the bonus symbols (a submarine), you’ll get eight bonus spins, and the number increases to 20 if you land six bonus symbols. All Nitro Reels are sticky during free spins, and free spins can be re-triggered. There’s also a super bonus game, played with the maximum number of rows (eight) and the Both Ways feature activated.


X-iter is a unique way of playing slots, now integrated into several ELK Studios games, including Nitropolis 4. If you click on the X-iter option on the game screen, you can choose from five different exciting modes, each of which costs a different amount. This is a way to get straight to the action, for example, by buying the bonus or “Super Play” round.

Bet Sizes, Max Win & Return to Player (RTP)

Nitropolis 4 offers thousands of ways to win, especially when the maximum eight rows are activated. The RTP of the game is 94%, and it has a high-volatility title. You can bet anything from 0.20 to 100, and with a maximum win of 50,000x your stake, you could be looking at a win of up to 500,000.

To learn more about deposit and withdrawal methods for betting on, read our online payment methods guide .

To start playing, make sure you have funds in your Stake account. You can add money using Bitcoin, Dogecoin, Ethereum, or one of the other crypto options available.

How to Deposit to Play Nitropolis 4 Slot Online

To deposit funds into your account to play Nitropolis 4 and other slot games, you can follow the steps listed below:

  1. Step 1 - Retrieve your deposit address, located in Wallet > Deposit.

  2. Step 2 - Choose the method which suits your needs. We offer many supported currencies , including Bitcoin (BTC) , Ethereum (ETH), Dogecoin (Doge), Litecoin (LTC), and others.

  3. Step 3 - Use your deposit address as the ‘send to’ location for your crypto wallet or exchange.

  4. Step 4 (Optional) - If you need to make a deposit via fiat currency, you can buy crypto for stake via Moonpay.

Stake provides live support and assistance from our customer support staff, be it for questions about Nitropolis 4 or if you have any issues or questions about depositing or withdrawing units . You can also store your crypto funds safely and securely using our Stake vault feature .

Moonpay supports multiple payment options , including Visa, Mastercard, Apple Pay, Google Pay, and more, to deposit cryptocurrency for Nitropolis 4 and other online casino games. For a full list of supported payment options, please refer to the Moonpay documentation.

Beginner at spinning the reels or want to level up your skills? Read up on how to play slots , discover how slot paylines work , or explore our ultimate guide to online casinos !

Popular ELK Studios Games on Stake

If you enjoyed Nitropolis 4, there are other games in the series to try out, like the original Nitropolis , plus other new releases from other providers, like Beast Band and 6 in the Chamber . ELK Studios is big on animal-themed slots , so you might also like Buffalo Toro , Rabbit Royale , and The Grand Galore .

Earn exclusive casino rewards with our ongoing casino promotions  whilst playing online slots, or take things up a notch by becoming a Stake VIP member . To learn more about the program, read our Stake VIP guide .