- ? Introducing Nitropolis – 2024 Review
- ? Nitropolis 5 & 2024 Battle of Nitropolis
- ? How to Play Nitropolis Games
- ? Nitro Reels
- ? Free Spins Bonus Game Feature
- ? Different Versions of Nitropolis Slot
- ? Visual Features of the Slot Machine Game
- ? Nitropolis Casino Bonuses
- ? Nitropolis Strategies
- ? Introducing the Developer: Elk Studios
- ? Concluding Our Review
- ? Nitropolis FAQ
? Introducing Nitropolis – 2024 Review
Nitropolis, developed by Elk Studios originally in November 2020, is an exciting slot game that features a post-apocalyptic animal world where four Nitro Clans run rampage: the Dirty Dawgs, the Gritty Kitties, the Pug Thugs, and the Rogue Rats. This high-volatility slot has special features to spice up the gameplay: the sticky Nitro Reel and the elusive Bonus Symbol.
This fun game features chaotic gameplay and graphics, and a whopping 85 155 840 ways to win. Yes, that’s 85 million winning combinations. Although these numbers might seem overwhelming, the game itself is actually pretty easy to understand once you start spinning. Here’s the basic information about this whimsical slot to get you started:
| ?? Slot Game | Nitropolis |
| ?? Return to Player (RTP) | 96.1% |
| ?? Max Win | 10,000 x Bet |
| ?? Volatility | Medium to High |
| ?? Minimum Bet | 0.20 |
| ?? Maximum Bet | 100.00 |
| ?? Developer | Elk Studios |
| ?? Release Date | November 2020 |
Since the release of the original game in 2020, Nitropolis has quickly grown into its own branch of online slots. Nitropolis now features four games in the main series, a couple of spinoffs, and the fifth Nitropolis installation on its way.
Nitropolis is a eccentric online slot game with funky features and engrossing gameplay. Check out our review on this fun game below!
? Nitropolis 5 & 2024 Battle of Nitropolis
In 2024, Elk Studios announced a massive game project spanning over the course of five months. The project, titled the Battle of Nitropolis, introduces a new online slot on the first Tuesday of each month from February onwards. All of the games are set in the Nitropolis universe. The battle was initially set to conclude on June 4th with the release of Nitropolis 5, but the release of the game was delayed until July 23rd.
The Battle of Nitropolis consists of the followning online slot titles:
- Gritty Kitty of Nitropolis
Released in February 2024, this first installment of the Battle of the Nitropolis is a very high volatility game with an RTP of 94%. - Rogue Rats of Nitropolis
The game of March, Rogue Rats of Nitropolis, is a high-volatility slot featuring the rodent gang from the wastelands around Nitropolis. - Dirty Dawgs of Nitropolis
The third installment of the Battle of Nitropolis, released in early April, is focused on the intimidating gang of hounds on a mission to defeat Sgt Nitro Wolf. - Pug Thugs of Nitropolis
The game of May and the fourth in the series features the clever canine gang, the Pug Thugs. With an RTP of 94%, the game has a high volatility of 8/10. - Nitropolis 5
Set to release on July 23rd, Nitropolis 5 is a volatile online slot with 6 reels and 4 rows and a potential maximum win of 50,000x.
? How to Play Nitropolis Games
Nitropolis slots feature 6 reels in 4 rows. The true spice of the game is found in the Nitro Reels. A Nitro Reel contains various features, but most importantly, they create more ways to win. There’s also a bonus game feature: the bonus game will be prompted after triggering three bonus symbols.
- Elk Studios Nitropolis slot machine has two modes: Normal Mode and Bonus Mode. Normal Mode refers to the regular gameplay, so your normal manual spins or auto spins. Bonus Mode refers to the bonus game, which runs with free spins feature.
- There’s a counter at the top of the reels. This counter indicates the ways to win from left to right. The counter starts from 4096 by default and grows rapidly from Nitro Reels’ multipliers.
- Nitropolis pays out winning combinations on matching symbols on adjacent reels starting from the left reel. The game only considers the highest winning combinations of matching symbols for active play lines. After the winnings have been paid out, the winning symbols will respin, whereas the remaining symbol positions, including the nitro feature symbols, stay as they are. The respin feature will trigger until there aren’t any winning combinations on adjacent reels.
- Nitropolis slot features manual spins and auto spins functions.
Basic Symbols
There are 12 different basic symbols on Nitropolis: the letters J, Q, K, and A; an emblem for each of the four Nitro Gangs; and a rat, pug, cat, and dog to represent each gang, respectively.
Wild Symbol
Elk Studios Nitropolis slot game has a wild symbol that’s portrayed by a mushroom cloud symbol in the first game of the series. In Nitropolis 2, 3, and 4, the wild symbol is depicted by toxic cocktails among other things. The wild symbol can act as any standard symbol that’s absent from the otherwise winning combination. Wild symbols can’t replace a bonus symbol and, therefore, can’t trigger the bonus game.
You can, however, have a Nitro Reel with wild symbols in it. It’s a relatively rare occurrence, but it does happen.
Bonus Symbols
In modern online slots, any free spins bonus game feature usually provide the most exciting moments. The special symbols you want to look out for in Nitropolis slot online game are engines. The symbol can also appear on Nitro Reels, though it won’t have Nitro multipliers like the regular symbols.
Nitropolis base game features exciting gameplay and bonus features.
? Nitro Reels
Nitro Reels are probably the most exciting feature of Nitropolis slots game. Nitro Reels are special types of reels that appear occasionally. The special Nitro Reels take up the space of two symbol positions and contain from 4 to 12 identical symbols. There are numbers on top of the Nitro Reels, which indicate the number of identical symbols within the Reels. For instance, a Nitro Reel that has the number 10 on top of it contains 10 identical standard symbols.
If a Nitro Reel is included in a winning combination, the wins will be collected, after which the included symbols and the now sticky Nitro Reels respin and stay sticky for the remaining spins. Sticky Nitro Reels will still have the same number of other symbols when spinning. This respin feature can result in further winning combinations and the free spins continue until there are no combinations of winning symbols. With these sticky Nitro Reels active, the number of winning combinations rapidly climbs up to the millions.
Special Nitro Reels can appear on your regular spin, but they can also appear randomly after two symbols are stacked on top of each other respin. Sticky Nitro Reels can also randomly increase during a respin, between free spins, or even at the end of a spin. When this happens, an ‘Upgrade’ text will appear on the reel.
Sticky Nitro Reels will occasionally have a respin. This is easily spotted by the ‘Second Chance’ text that pops up on top of the reel.
? Free Spins Bonus Game Feature
Getting three or more special symbols will trigger the Nitropolis bonus game. The bonus rounds are essentially free spins. The number of free spins depends on the number of symbols that triggered the extra game, varying from 10 to 25. This free spins feature can also trigger a new set of bonus rounds – if you get three or more of the required special symbols.
Elk Studios have released multiple versions of Nitropolis, adding a bit more spice to each new version while still staying true to the spirit of the first game.
? Different Versions of Nitropolis Slot
Elk Studios Nitropolis slot game was developed further and introduced further sequels or spinoffs: Nitropolis 2, Nitropolis 3, and most recently Nitropolis 4. The games were released in a relatively short timeframe, and feature the same furry friends from the original game. Nitropolis 2 and Nitropolis 3 are somewhat different from the original game, making the gameplay spicier. There are also some updates on the graphics, and for example the wild symbols vary depending on the version you’re playing. Otherwise, the versions of these online slots follow in the footsteps of the original game.
Nitropolis 4, the latest addition to the Nitropolis slots game family, was released in late February 2023.
Nitropolis 2
Nitropolis 2 is just as chaotic and wild as its predecessor. The game has even more features than the original, introducing over 191 million ways to win. Compared to the original slot game, the sequel has a lower RTP of 95%. It’s a high-volatility online slot that introduces a new Nitro Booster feature. The Nitro Booster modifiers are the most notable differences in an otherwise familiar base game.
Nitro Boosters are separate reels located above the main reels. Nitro Booster reels have altogether 8 different features, 6 of which affect the Nitro Reels:
- Nitro Wild: All symbols within Nitro Reels will land as Wild Symbols.
- Nitro Match: As the name suggests, Nitro Match will match the symbols in an existing Nitro Reel with a payout symbol on the adjacent Nitro reel to the left.
- Nitro Upgrade: Same as the Upgrade feature in the original slots.
- All Wild: A feature that functions like Nitro Wild, but affects all Nitro Reels. This feature will override the following All Match and All Premium features.
- All Match: Same as Nitro Match, but applies to all the Nitro Reels.
- All Premium: All symbols within Nitro Reels will have one of the top four highest-paying symbols.
There are also two features that affect the main reels:
- Both Ways: All ways will pay from left to right and vice versa. Both Ways stay sticky until there are no more respins or wins.
- Respin: You’re winning respins for the affected reels.
Nitropolis 2 was is one of the most exciting Elk Studios games. It’s an upgrade to regular Nitropolis and introduces new features, such as Nitro Wild and Nitro Upgrade.
Nitropolis 3
Nitropolis 3 slot introduces the almighty Sergeant Nitro Wolf, an Avalanche feature, the Safety Levels, Green Nitro feature symbols, Big Symbols, the Big Nitro Reels, and the Super Bonus Game. Compared to the usual 6 reels in 4 rows, Nitropolis 3 introduces expanding rows that further improve the chances of winning on every spin or symbol drop. The RTP is at 95%, there are millions of ways to win, and the hit frequency is 19.2%. In addition to the familiar features like nitro reels, these new features bring changes to the slots:
- Avalanche: All the symbols that are a part of a win explode, leaving room for additional symbols to drop down from the top. This feature can continue until there are no more matching symbols to score a win.
- Big Nitro Reels: The massive symbols of the Big Nitro Reels cover the space of six symbols and contain from two to six 2 x 2 payout symbols. Land big nitro reels to multiply your chances of winning!
- Safety Levels: The Safety Level is a new feature within the Bonus Game. For all new free spins within the bonus rounds, the Safety Level advances one row.
- Super Bonus Game: An upgrade to the familiar bonus game. This feature is triggered by a combination of super bonus symbols and regular bonus symbols. The Super Bonus feature is played exceptionally both ways and with 8 rows.
Nitropolis 3 features safety levels and a thrilling Super Bonus game, offering even more opportunities to win big.
Nitropolis 4
Although Nitropolis 4 isn’t yet widely available in the US, you can play the demo game (and other free slots from Elk Studios) on Elk Studios’ website.
Excluding the spinoff games from the Battle of Nitropolis series, Nitropolis 4 is the latest main game in the Nitropolis slot game family. Elk Studios released the new version of the Nitropolis slot machine on in early 2023. The game has a lower RTP of 94% and hit frequency of 18.1%, making the game the most volatile one yet. However, the maximum win is also increased to an astounding 2.5 million.
Nitropolis 4 features the familiar animal gangs and exciting game mechanics introduced in the previous versions.
Line up those Nitro Reels! You can play Nitropolis 4, the latest Elk Studios slots, as a free demo version.
? Visual Features of the Slot Machine Game
Let’s be real, many friends of slots often end up trying new slot games after being drawn in by the game’s visuals. Nitropolis is an absolute standout of a game in that aspect: the game showcases quirky post-apocalyptic art. Unlike your regular run-of-the-mill online slots, Nitropolis is truly dedicated to its theme, captivating the player in a matter of seconds.
The biggest eye-catchers of Nitropolis have to be the different animal clans. With quirky names like Rogue Rats, Pug Thugs, and Dirty Dawgs, and the proper artwork to accompany these mammal misfits, the initial impression of the slot is that of bewildered amusement. These animal clans are facing off in a fierce fight for Green Nitro, the sought-after fuel for their cars.
Visually, Nitropolis is a far cry from your traditional three-reels or Vegas slots. With all its visual quirks, the game can initially feel a bit overwhelming. Luckily, that feeling passes after a couple of spins, and suddenly you find yourself immersed in the Nitro gangs.
Wondering what’s the best way to play Nitropolis? BonusFinder gambling experts have gathered some tips and tricks on how to play online slots.
? Nitropolis Casino Bonuses
As of September 2024, Nitropolis series are not staple casino games at US online casinos. Because the games are not available for real money casino gaming at licensed US casinos, there are no deposit bonuses to claim at the moment. When Nitropolis becomes more widely available in the US, you can claim a welcome bonus or free spin bonus at your chosen online casino to play with more.
Some of the best casino bonuses have a low minimum deposit or no deposit required at all! You can find plenty of high-value casino bonus codes at BonusFinder US.
? Nitropolis Strategies
As mentioned at the very beginning of this article, Nitropolis slot machine is a high volatility slot. So despite the interesting features, the enormous numbers of different winning ways, and the possibility of triggering the free spins bonus rounds, you could play the game for a long while without any winnings.
The base game has a hit frequency of 19.8%, meaning that you can expect to win on approximately every fifth spin. While high volatility gameplay makes the stakes higher, playing any online slots for a long period of time without notable winnings can get dull.
Our recommendations for a strategy? Manage your expectations with this game: there’s always a chance to win big, but know that you could spend a lot of time waiting for that big win to happen. Keep an eye on your bankroll, too.
? Introducing the Developer: Elk Studios
The game studio behind Nitropolis hails from Sweden. ELK Studios was founded in 2013, and quickly established its spot as one of the top online casino game developers in Europe.
Games from ELK Studios have some of the best graphics in the online casino industry. From a player’s point of view this is very refreshing: online casino games, especially slots, tend to feature a lot of overlapping themes. Games from ELK Studios have beautiful graphics topped with unique game mechanics. If you’re a fan of good, conceptual games, check out Elk Studios games!
Unfortunately, most games from Elk Studios have yet to take over the American online casinos. Their games aren’t nearly as widely available as games from big names like NetEnt, IGT, or Pragmatic Play. That said, Elk Studios have been granted a New Jersey license in 2024 spring, so you can expect to see Nitropolis and other games from Elk Studios on NJ online casinos soon.
? Concluding Our Review
Elk Studios outdid themselves: Nitropolis and its upgraded versions are a breath of fresh air among online slots. The games are a ton of fun, quirky, and exciting. The graphics of the slots are impeccable, and the concept is well thought out and incorporated in all aspects of the slots.
Similar to other slots of high volatility, long periods of time could be spent without a notable win, which could make the gameplay dull in the long run. However, if luck is on your side and you do win, the slots quickly become exhilarating.
Some of the best online casinos in the US have yet to include Nitropolis and its successors in their game libraries. We’re confident that Nitropolis’ debut in the American online casinos is only a matter of time.
If you want to know what the buzz is all about, give Nitropolis a spin! You can try it out for free on our Free Games page.
