You have an initial 4 rows of symbols, and 4,096 ways to win. The 6 reels sit in a landscape of industrial-looking towers and pylons, and there’s a slightly run-down appearance to this bleak future. Symbols on this grid include splatter-style playing card icons, cartoon rats, cats, and dogs, plus the Dirty Dawgs, Gritty Kitty, Pug Thugs, and Rogue Rats gang emblems.
A mushroom cloud, and V8 engine give the Nitropolis slot machine a Mad Max style that looks great on PCs, iOS, Windows, or Android mobiles - meaning you can play at your favourite casino apps.
You can play with a wide range of stakes, winning a prize when matching symbols land across reels from the left side. A special Nitro Reels system adds multiple symbols at random, varying the number of winning ways in each spin, to a vast potential of over 85,000,000.
Other features include winning symbols respinning, and the symbol upgrades can lead to higher-value wins. During a free games feature, Nitro Reels keep growing, making it easier to claim prizes as the round progresses.
The controls are nice and easy to use, and like other ELK Studios games, it comes with several betting strategy options that place wagers automatically. You can stake between 0.20 and 100.00 on each spin, clicking the stack of coins symbol on the controls to open up all of the options.
There’s an Autoplay mode that runs for up to 100 spins, and if you click the 3 lines at the top of the game screen, you go through to a paytable, where you find out how much each symbol is worth. Top dog is the Doberman, which is worth 6x your total bet when it crosses all 6 reels of the Nitropolis slots game.
The Nitro Reels are the star here. These cover 2 symbol positions at random, but hold 4, 6, 8, 10, or 12 matched symbols on them, stacked one above the other. That increases the number of ways to win, and the chances of collecting a prize. In the base games, Nitro Reels are only active for a single spin, and if you are lucky enough to fill all symbol positions with them, it gives you that maximum of 85,115,840 winning ways at any given slot site.
Any winning symbols respin while others remain in place. If this creates a new win, you get paid, and the respins carry on, with no upper limit to how many you can trigger. Nitro Reels can upgrade between respins, or free games, turning the symbol within them into a higher paying one for a bigger win. In a Second Chance feature, at the end of a series of respins, Nitro Reels can spin one more time and potentially land you with a further win.
The mushroom cloud is a wild symbol that can act as any other if it helps, and the V8 engine triggers the free games feature when it lands in at least 3 places at once. Depending on the number of triggering symbols, you get between 10 and 25 bonus games, and during these, Nitro Reels stay in place.
That sees the number of winning ways build up, making it easier and easier to grab prizes as the games play out. Respins are still active and you can retrigger the feature with more scatter symbols.
You can win a huge prize of 10,000x your bet from this game, which at 100.00 stakes, equals 1,000,000.00. Nitropolis has a medium to high volatility and the average return to players percentage is a generous 96.1%.
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This great looking game has some outstanding mechanics, with Nitro Reels giving your odds of collecting wins a huge boost. The post-apocalyptic topic is covered with some dark humour, and the characters, such as a dopey pug and martial arts practicing cat, are sure to raise a smile. If this slot seems a bit complicated to you, check out Taco Brothers from the same software guru for a completely different online slot game experience.
You can enjoy the Nitropolis slots game at our recommended online and mobile casinos. Unlock a vast number of winning ways when you play at the top sites today.
Senior content operations specialist at gambling.com
With over 12 years of experience in online gaming, Adam has seen, played, reviewed, and tested hundreds of slot games. He is always keeping an eye out for new features, themes, and potential jackpots by testing slot games even before they are released to the market.