Nitropolis 4 is a new slot game from ELK Studios, continuing the saga of the Nitro Gangs in an engaging gaming experience. The story began in 2020 with the original Nitropolis slot, introducing factions like the Dirty Dawgs, Gritty Pugs, Rogue Rats, and Pug Thugs, all vying for the valuable green nitro. As nitro became scarce, tensions escalated between these groups. Nitropolis 2 brought Sergeant Nitro Wolf into the picture, aiming to restore order. However, cleaning up the streets proved challenging. In Nitropolis 3, Mr. Nitro Wolf sought tranquility in warmer climates, but the gangs followed, leading to another showdown.
The game’s design presents a futuristic underwater world, where the Nitro Gangs are now searching for treasure beneath the waves. The backdrop of the reels displays large structures resembling offshore oil platforms. Triggering the bonus game takes you deeper underwater. Nitropolis 4 is accessible across various devices, including mobile phones, tablets, and desktop computers. A winning combination is formed by landing 3 or more matching symbols on adjacent reels, starting from the left, which initiates the Avalanche feature. You can enjoy playing Nitropolis 4 at , a leading online casino platform.
The lower-value symbols are represented by J, Q, K, and A. Landing six of these symbols awards 0.3x the bet. Medium-value symbols consist of the gang emblems: Red Rats, Gritty Pugs, Cool Cats, and Dirty Dawgs. Six matching symbols of these award between 0.8x to 1x the stake. The higher-value symbols are the gang leaders themselves. Six of the same leader symbols provide payouts from 1.25x to 3x the bet. A submarine acts as the scatter symbol, with a “Super” variant also present. The sea mine is the wild symbol. During spins, large symbols up to 3×3 in size can appear. Nitro Reels and Nitro Multipliers add further dynamics, boosting potential winnings.
What is the maximum win in Nitropolis 4 slot?
The maximum possible win is 50,000 times your stake.
What features are available in Nitropolis 4 slot?
The game includes features such as Wild Symbol, Avalanche, Big Symbols, Nitro Reels, Nitro Multiplier, Nitro Booster, Bonus Game, and X-iter.
The wild symbol in Nitropolis 4 enhances the creation of winning combinations by substituting for all symbols except the scatter symbols.
When a winning combination occurs, the Avalanche feature is triggered. Symbols involved in the win disappear from the reels, and new symbols cascade down to fill the empty positions. Each avalanche adds an extra row, potentially increasing the number of rows on each reel up to eight, thereby boosting the potential winning ways. Nitro Multipliers and Nitro Reels that are part of a winning combination will re-trigger. The avalanche sequence continues as long as new wins are formed. The total win is paid out when no more new combinations are created.
During spins, oversized symbols of 2×2 or 3×3 dimensions can randomly appear. A 3×3 symbol is equivalent to nine regular symbols of the same type. These large symbols can be low-value, medium-value, high-value, or wild symbols.
Nitro Reels occupy two symbol positions and contain 4, 6, 8, 10, or 12 pay symbols of 1×1 size. Large Nitro Reels are also possible, taking up 6 symbol positions and holding 2, 3, 4, 5, or 6 pay symbols of 2×2 size. Nitro Reels can include super scatters, which only appear within them. Each super scatter on a Nitro Reel counts as a single 1×1 symbol.
This symbol occupies two positions and multiplies all wins in view, while itself being considered a 1×1 symbol in size. It can appear with values of 4X, 6X, 8X, 10X, or 12X, and its effect is multiplied if multiple Nitro Multipliers land on the screen simultaneously.
Nitropolis 4 features 8 distinct Nitro Boosters that add modifiers to the main reels. Here are their descriptions and effects:
Re-Spin = All scatter symbols and Nitro Reels are held, and all other symbols are removed. A re-spin then occurs where new symbols fill the empty positions.
Both Ways = Wins are formed from both left to right and right to left.
Junkyard = Random symbols are selected and then removed, triggering the avalanche feature.
Max Rows = Expands the reels to their maximum of 8 rows.
Nitro Appear = Places a Nitro Reel of a random size onto the reels, replacing symbols in its landing position.
Nitro Wild = An existing Nitro Reel is filled with wild symbols. If no Nitro Reel is present, the feature is saved until one appears or the bonus game ends.
Nitro Upgrade = Nitro Reels on the same and adjacent reels are upgraded, adding extra symbols or multipliers. If no Nitro Reel is present, the feature is saved until one appears or the bonus game ends.
Nitro Match = An existing Nitro Reel is matched with a visible symbol, then filled with that symbol type to create a win. If a winning match is not possible, the selected Nitro Reel is matched with an adjacent one. If this is also not possible, it is matched with the highest value symbol on adjacent reels. If no Nitro Reel is present, the feature is saved until one appears or the bonus game ends.
Landing 3 or more scatter symbols activates the Bonus Game. Depending on the number of scatter symbols (3, 4, 5, or 6), you will receive 8, 12, 16, or 20 free spins, respectively. During the bonus game, additional free spins can be won, with the same amount awarded per scatter as the initial trigger. All Nitro Reels that land remain sticky for the duration of the Bonus Game. If the Bonus Game is triggered with at least one super scatter symbol, the Super Bonus Game is activated, which includes both Both Ways and Max Rows modes active.
Each winning free spin increases the safety level by 1 row. Subsequent free spins always start with the number of rows reached at the safety level.
For quicker access to enhanced features, the X-iter mode can be used. The following options are available:
2X (Bonus Hunt) = A spin with double the chance of triggering the Bonus Game.
10X (Nitro Booster) = A spin where the Nitro Booster, when activated, provides 2 features.
25X (Super Spin) = A spin with both Max Rows and Both Ways features activated.
100X (Bonus Game) = Initiates the standard Bonus Game.
500X (Super Bonus Game) = Activates the enhanced Super Bonus Game with Both Ways and Max Rows features.
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Aiden Brooks 
