Nitropolis 5 (ELK Studios) – Review & Demo Play

The Nitropolis 5 Slot Game

I jumped back into Nitropolis with the clans uniting for the final push against Sergeant Nitro Wolf, and Nitropolis 5 delivers the showdown. It runs on 6 reels that can grow from 4 to 8 rows, starting at 4,096 ways and climbing into the millions when the grid expands and Nitro Reels land. Stakes in the UK run from 20p to £5, volatility is high, and the audiovisual hit sets the pace. It’s the familiar chaos, refined for the Battle of Nitropolis.

Symbols and Payouts in Nitropolis 5

Regular pays split three ways. Lows are J, Q, K, and A, paying 0.25x the bet for six of a kind. Mid pays are the clan emblems from Rogue Rats, Pug Thugs, Gritty Kitty, and Dirty Dawgs, paying 0.30x for a six-symbol hit. High pays are the four gang leaders, with six of a kind worth between 1x and 3x your stake. The structure keeps base hits tidy while leaving headroom for the feature-driven spikes.

Wilds step in for all regulars except the bonus and super bonus symbols, and a line of wilds pays like the top dog. The truck acts as scatter, and the super scatter only appears in Nitro Reels, counting as a single symbol. Big 2x2 or 3x3 symbols can land as well, with empty spots beneath filled by matching 1x1s. It’s a clean paytable that meshes with the avalanche build and Nitro mechanics.

Nitropolis 5 Symbols and Paytable

Symbol	Quantity	Payout
	6	x3
	5	x1.5
	4	x1.25
	3	x1
	6	x1.5
	5	x1.25
	4	x1
	3	x0.75
	6	x1.25
	5	x1
	4	x0.75
	3	x0.5
	6	x1
	5	x0.75
	4	x0.5
	3	x0.3
	6	x0.3
	5	x0.25
	4	x0.2
	3	x0.15
	6	x0.3
	5	x0.25
	4	x0.2
	3	x0.15
	6	x0.3
	5	x0.25
	4	x0.2
	3	x0.15
	6	x0.3
	5	x0.25
	4	x0.2
	3	x0.15
	6	x0.25
	5	x0.2
	4	x0.15
	3	x0.1
	6	x0.25
	5	x0.2
	4	x0.15
	3	x0.1
	6	x0.25
	5	x0.2
	4	x0.15
	3	x0.1
	6	x0.25
	5	x0.2
	4	x0.15
	3	x0.1
	Scatter
	Wild

Nitropolis 5 Slot Bonus Features

Avalanches remove winning symbols and add rows, climbing to a cap of eight per reel. Nitro Reels cover two positions and hold 4, 6, 8, 10, or 12 matching 1x1s, while Big Nitro Reels span six spots with 2x2 symbols. Nitro Multipliers sit in Nitro Reels with values of 4x, 6x, 8x, 10x, or 12x, stack multiplicatively, and stay for respins. NPD Holding Cell can trigger at random, locking a picked symbol and expanding the main grid while it keeps paying.

The Nitro Booster row above the reels runs three flippers that can fire before stops, after stops, or post-win checks. There are 11 modifiers. Max Rows expands to eight. Both Ways pays from both ends. Respin holds wilds, scatters, Nitro Reels, and multipliers. Nitro Wild fills Nitro Reels with wilds. Nitro Upgrade improves size and ways. Nitro Match aligns Nitro Reels to a symbol. Dirty Dawgs, Gritty Kitty, Pug Thugs, and Rogue Rats add or move Nitro Reels or run scatter pays.

Three Boss Battle coins in the Booster trigger the Boss Battle. The slot swaps to a 7x8 board with coins, blanks, and a Max Win tile. You get three shots; each coin hit pays and resets shots to three. Free Spins arrive with 3, 4, 5, or 6 scatters for 8, 12, 16, or 20 spins, sticky Nitro Reels, and a safety level that climbs to eight. A Super Bonus adds Max Rows, Both Ways, NPD every spin, and X-iter buys from 3x to 500x.

Bonus Buy Feature

Bonus Hunt
Feature Cost:	x3 Bet
RTP:	-
Volatility:	-
Gang Warfare
Feature Cost:	x10 Bet
RTP:	-
Volatility:	-
NPD 4EVA
Feature Cost:	x25 Bet
RTP:	-
Volatility:	-
Bonus
Feature Cost:	x100 Bet
RTP:	-
Volatility:	-
Super Bonus
Feature Cost:	x500 Bet
RTP:	-
Volatility:	-

How to Win at Nitropolis 5 Slot

I keep it simple on setup. Pick a stake between 20p and £5, hit spin, or use autoplay for up to 100 rounds. Base wins need three or more matching symbols on adjacent reels starting from the left, though Both Ways can flip it to pay from either side when active. As avalanches add rows and Nitro Reels land, the ways skyrocket, so timing and feature synergy matter. It’s a rhythm slot once you settle in.

Nitropolis 5 Slot RTP & Volatility

Nitropolis 5 sticks with a 94% RTP and high volatility, so the ride swings. The hit frequency sits around 18.7%, and the top exposure reaches 50,000x the bet. It starts at 4,096 ways to win and can shoot past a million when rows expand and Nitro Reels cluster. With UK stakes capped at 20p to £5, pacing your session matters, especially if you dip into X-iter. The maths profile suits bonus chasers who can handle dry spells.

The Final Verdict on Nitropolis 5

For me, this is classic Nitropolis mayhem tuned for the last stand. The Nitro Booster keeps the main game lively with Max Rows, Both Ways, and those cheeky clan effects, while Avalanches and Big Symbols stitch wins together. Boss Battle breaks things up nicely, and I rate how NPD Holding Cell can snowball a screen when it sticks. The flow feels punchy, the audio bangs, and the feature set hits that familiar sweet spot for the series.

It isn’t perfect. The RTP sits low, and the base can run parched between surges, so I pace my bets and pick X-iter spots carefully. Still, sticky Nitro Reels in free spins, the rising safety level, and the Super Bonus package give real bite. If you enjoy high-volatility action with stacks of moving parts, this one is a proper send-off for the Battle of Nitropolis arc, with a 50,000x ceiling that keeps the pulse up.