As dusk falls over Nitropolis, the various clans are poised to execute their strategies. A decisive confrontation marked by perseverance and resolve awaits, as they aim to defeat Sgt Nitro Wolf and reclaim what was once theirs. Whether through triumph or sacrifice, the time has come to recapture Nitropolis.

Nitropolis 5 is an innovative slot game featuring 6 reels and 4 rows, offering an array of features including expanding reels, large symbols, Nitro Reels, Nitro Multiplier, a Boss Battle, a Bonus round, and a Super Bonus game, with a maximum winning potential of 50,000 times the bet amount.
Bonus game
The Bonus Game is activated by landing 3 or more bonus symbols, triggering the free spins round where all Nitro Reels remain sticky. If a Super Bonus symbol appears among the bonus symbols, it initiates the Super Bonus game with maximum rows, bidirectional payouts, and NPD Holding Cells active in every spin.
The game is packed with a number of features, which include:
NPD Holding Cells
During any spin, a random symbol is selected, and if it contributes to a winning combination, it gets locked in place, granting respins as long as additional matching symbols appear.
Boss Battle
Upon landing 3 Boss Battle coins in The Nitro Booster Reel, players engage in a showdown against Nitro Wolf, with the opportunity to win coin prizes or even the maximum jackpot.
Nitro Booster
Players can access 11 unique features through the Nitro Booster, ranging from classic Nitro elements like Nitro Wild to new Clan features such as Gritty Kitty, which awards scatter wins.
Nitro Reels
These reels come in varied sizes and may feature payout symbols, a universal multiplier, or the Super Bonus symbol.
X-iter
X-iter™ presents five distinct gameplay modes enabling players to directly immerse themselves in the game. Modes include a 3x bet with increased bonus landing odds, up to a 500x bet Super Bonus round with maximum rows, bidirectional payouts, and NPD Holding Cells in each spin.

Review Overview
Summary
Nitropolis 5 slot now must be a record in any game series as five is highly unusual. The formula must be popular so the 6 reels of 4 rows and 4096-way pays are retained with the sixes paying 3 down to 0.25x bet. The X-iter modifier range is what this series is renowned for and as well as the usual block symbols, splitters, expanders and Wilds there is now a top block of 3 random modifiers which change each spin and of which none to all three can fill. Wins are replaced from above in tumbles and as befits the name, the Nitro reels are retained which can expand up to 12 symbols and Nitro multipliers offer multipliers to 12x when they cover 2 symbol positions. The free games are really where the nitro power is seen as you get 8 to 20 for 3 to 6 scatters and Nitro expanded reels are sticky, meaning it's possible to get the grid expanded up to the limit of 262144-ways. This results in a very high win cap of 50,000x bet here in Nitropolis.
The Pros
Great appearance and sounds Big range of base game modifiers Free games are pretty spectacularThe Cons
Bonus can take a long time to appear Low base game win frequency Free games round very hit or miss- Gameplay9
- Visuals8
- Features9