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Rules and Gameplay

The Nitropolis series plunges players into a chaotic world where animal factions vie for dominance, using a 6×4 grid that expands through various features. Initially, the game offers 4,096 ways to win, but this can exponentially increase with the game’s mechanics. Players match symbols across adjacent reels to form wins, with each spin holding the potential to trigger game-changing features that escalate the action and winning opportunities.

Bonus Features

Nitropolis slots are renowned for their array of dynamic bonus features, each adding layers of excitement to the gameplay:

  • Free Spins: Earned by landing scatter symbols, offering players a direct path to higher winnings with sticky Nitro Reels in play.
  • Nitro Reels: This signature feature can transform two reel positions into a single one containing multiple symbols, significantly increasing winning ways.
  • Respins and Upgrades: Winning spins may trigger respins or upgrade Nitro Reels, further enhancing the potential for massive wins.
  • X-iter Modes: A unique buy-in feature that allows direct access to game-enhancing modes, escalating the excitement and win potential.


Nitropolis slots feature a rich tapestry of symbols, each with distinctive artwork and value:

  • High-Paying Symbols: Characterized by the leaders of the animal factions, these symbols offer the largest payouts.
  • Low-Paying Symbols: Represented by card royals, these symbols provide more frequent but smaller wins.
  • Wilds: Essential for creating winning lines by substituting for most symbols.
  • Scatters: Key to unlocking the thrilling free spins feature.


The game’s payout structure is geared towards high volatility, with significant rewards available through its bonus features. Below is an example payout table for some of the high-value symbols:

Symbol 3 of a Kind 4 of a Kind 5 of a Kind 6 of a Kind
Doberman Leader 0.3x 0.6x 1.0x 3.0x
Pug General 0.2x 0.5x 0.8x 2.5x
Kitty Commander 0.1x 0.4x 0.7x 2.0x


Starting with 4,096 ways to win, Nitropolis slots use an innovative system where paylines can expand dramatically, thanks to the Nitro Reels feature, potentially offering up to millions of winning ways. This system ensures each spin can be a game-changer, providing thrilling gameplay with each new round.

Pros & Cons

Pros Cons
Innovative Nitro Reels feature offering up to 85,155,840 ways to win. High volatility may not suit all players.
Engaging post-apocalyptic theme with high-quality graphics. Complex gameplay mechanics can be overwhelming for new players.
Various bonus features like free spins, respins, and symbol upgrades. Max win potential feels underwhelming given the vast number of win ways.

Minimum and Maximum Bet

The betting range in Nitropolis slots caters to a wide spectrum of players, with minimum bets starting at $0.20 and maximum bets going up to $100 per spin. This flexibility allows both casual players and high rollers to enjoy the game at their comfort levels.

Game Jackpot

The jackpot in Nitropolis can soar up to 10,000 times the stake, aligning with the game’s high volatility and providing a thrilling chase for the massive win. The Return to Player (RTP) is at a competitive 96.1%, with the game’s variance swinging from medium to high, reflecting the balance between risk and reward in the gameplay.

About Provider

ELK Studios, the developer of Nitropolis, is renowned for its innovative approach to slot game design. Established in 2012 and based in Stockholm, ELK Studios has carved a niche in creating high-quality, engaging slots with unique themes and features, primarily focusing on mobile-first experiences that cater to the modern player.

How To Play

  • Setting Your Bet: Start by selecting your bet size. Use the controls to adjust the bet from $0.20 to $100.
  • Understanding the Paytable: Access the paytable to familiarize yourself with the different symbols and their payouts.
  • Spin the Reels: Hit the spin button to start the game. Wins are formed by matching symbols on adjacent reels.
  • Explore Bonus Features: Keep an eye out for Nitro Reels and scatter symbols to unlock the game’s bonus features like free spins and respins.
  • Adjust Strategy: Depending on the outcome of your spins, adjust your betting strategy to optimize the balance between risk and potential winnings.


Nitropolis by ELK Studios offers a unique slot experience with its innovative Nitro Reels feature, expansive ways to win, and an engaging theme. The game’s high volatility and extensive bonus features cater to players looking for dynamic gameplay and the thrill of big potential payouts. With its well-designed mechanics and the backing of a reputable provider, Nitropolis stands out as a must-try for fans of feature-rich slots.