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Alright, so Nitropolis 4 is the latest banger from ELK Studios. Back to the Nitropolis universe, yeah? This time the Nitro Gangs are ditching the streets and going underwater. Think Mad Max meets Jacques Cousteau. We first saw these guys in Nitropolis back in 2020 – Dirty Dawgs, Rogue Rats, Gritty Kitties, and Pug Thugs battling it out over Nitro. Shit got scarce, tensions rose. Nitropolis 2 brought in Sergeant Nitro Wolf to try and chill things out. Didn’t work. Nitropolis 3? Wolfie bailed to paradise. Gangs followed, naturally. Now we’re here, underwater, still fighting.
Visually, it’s a futuristic underwater vibe. Reels are set against these massive oil rig looking things. Bonus round kicks in, you go underwater. Playable on anything – phone, tablet, desktop. Wins are standard left-to-right, 3+ symbols on adjacent reels trigger the Avalanche feature.
Low pays are J, Q, K, A. 6-of-a-kind gets you 0.3x your bet. Mid-range are the gang emblems – Rats, Pugs, Cats, Dawgs. 6 of those is 0.8x to 1x. High pays? Gang leaders. 6 of them pays 1.25x to 3x. Submarine is the scatter. Super scatter says «Super» on it. Sea mine is the wild. Big symbols up to 3×3 can drop. And yeah, Nitro Reels and Nitro Multipliers are back to pump up those wins.
Max win on Nitropolis 4?
50,000x bet. Huge.
What features are in Nitropolis 4?
Wilds, Avalanche, Big Symbols, Nitro Reels, Nitro Multiplier, Nitro Booster, Bonus Game, and X-iter.
Wilds substitute for everything but scatters. Helps you make more combos, duh.
Hit a win, Avalanche kicks in. Winning symbols explode, new ones drop. Each Avalanche adds a row, up to 8 rows max per reel. More ways to win. Nitro Reels and Multipliers in a win re-trigger. Avalanches keep going till no more wins. Total win paid at the end.
Randomly, you get 2×2 or 3×3 symbols. 3×3 is like 9 regular symbols of the same type. Can be low, mid, high pay, or wilds.
Nitro Reels are 2 symbol positions tall, hold 4, 6, 8, 10, or 12 1×1 pay symbols. Big Nitro Reels are 6 positions tall, hold 2, 3, 4, 5, or 6 2×2 pay symbols. Nitro Reels can have super scatters too. Each super scatter in a Nitro Reel counts as one 1×1 symbol.
Two positions tall, multiplies all wins in view. Counts as a 1×1 symbol. Values are 4x, 6x, 8x, 10x, or 12x. Multiple Nitro Multipliers on screen? They multiply each other. Stack ’em high.
8 different Nitro Boosters. Add modifiers to the main reels.
Re-Spin = Scatters and Nitro Reels lock, everything else clears. Respin happens to fill the empty spots.
Both Ways = Wins pay left-to-right AND right-to-left.
Garbage Collect = Random symbols picked and removed, triggers an Avalanche.
Max Rows = Reels expand to max 8 rows.
Nitro Match = Places a random sized Nitro Reel, replaces symbols where it lands.
Nitro Wild = Turns an existing Nitro Reel wild. If no Nitro Reel, it waits until one appears or bonus ends.
Nitro Upgrade = Upgrades Nitro Reels on the same and adjacent reels. Adds more symbols or multipliers. If no Nitro Reel, it waits until one appears or bonus ends.
Nitro Match = Matches an existing Nitro Reel to a visible symbol type, then fills it with that symbol for a win. If no win possible, it matches to an adjacent Nitro Reel. If still no go, it matches to the highest value symbol on adjacent reels. If no Nitro Reel, it waits until one appears or bonus ends.
3+ scatters trigger the bonus. 3, 4, 5, or 6 scatters get you 8, 12, 16, or 20 free spins. More free spins can be won during the bonus, same amount as trigger. Nitro Reels that land stick for the bonus duration. If the bonus triggers with at least one super scatter, you get the Super Bonus Game. This has Both Ways and Max Rows active. Boom.
Every winning free spin bumps up the safety level by 1 row. Next free spin always starts with the rows you hit on the safety level.
X-iter for buy-in features. Options:
2X (Bonus Hunt) = Spin with double the bonus chance.
10X (Nitro Booster) = Spin with Nitro Booster giving 2 features.
25X (Super Spin) = Spin with Max Rows and Both Ways active.
100X (Bonus Game) = Triggers the standard Bonus Game.
500X (Super Bonus Game) = Activates the Super Bonus Game with Both Ways and Max Rows.
Rupert Thwaites
