Nitropolis 3 slot
Nitropolis 3 is an ELK Studios slot in which the Nitro gangs leave their city behind, escaping by blimp to a new hideout on a beach. It starts on 6 reels and 4 rows with 4,096 ways, and the rows can expand. Its defining feature is the Nitro Reel: a block that packs up to 12 small symbols into two positions, adding ways whenever it lands.
Editorial note: this guide explains how Nitropolis 3 works. Rules, features and payout figures are set by the studio and can differ between operators and game versions, so check the game’s information panel before you play. Slots are games of chance, and nothing here predicts results. Availability at Fortune Games can change.
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Nitropolis 3: key facts
| Studio | ELK Studios |
|---|---|
| Reels and ways | 6 reels, 4 rows at the start (4,096 ways); the rows can expand up to 8 |
| Maximum win | 50,000x stake |
| Small Nitro Reels | Cover two symbol positions and hold up to 12 1x1 symbols |
| Big Nitro Reels | Cover six symbol positions and hold up to six 2x2 symbols |
| Nitro features | Nitro Wild, Nitro Match, Nitro Upgrade, Both Ways and Redrop |
| Both Ways | Wins also pay from right to left |
| Bonus Game | 8, 12, 16 or 20 free spins for 3, 4, 5 or 6 bonus symbols |
| Nitro Reels in the Bonus Game | Sticky for the whole round |
| Super Bonus Game | Bonus symbols together with a super bonus symbol; played at 8 rows with Both Ways active |
| Autoplay and turbo | Not available at sites licensed in Great Britain; UK rules require at least 2.5 seconds between the start of one game cycle and the next |
| Stakes | From 20p a spin in the studio’s range. UK rules cap online slot stakes at £5 a spin, or £2 if you are 18 to 24 |
| RTP | Shown in the game’s information panel |
| Series | Nitropolis |
All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time.
How Nitropolis 3 plays
The game begins on a grid of 6 reels and 4 rows, where matching symbols on adjacent reels, counted from the leftmost reel, form wins across 4,096 ways. The cast comes from the series’ Nitro gangs, and ELK Studios builds the base game on expanding rows and big symbols, so the grid and the symbols on it can both grow. Rows can be added until the grid reaches 8, raising the ways as it goes. The bonus symbol shows the gangs’ blimp, the same craft that carried them out of Nitropolis, and three or more of them start the Bonus Game. On top of that, Nitro Reels can land in the grid.
Nitropolis 3: 6 reels, 4 rows at the start (4,096 ways); the rows can expand up to 8. The example shows 243 ways on a 5 × 3 grid.
Small and big Nitro Reels
A Nitro Reel is a column within a column. The small version covers two symbol positions but holds up to 12 symbols of the normal 1x1 size, so a single strip of the grid can carry far more symbols than the rows around it. The big version covers six positions and holds up to six 2x2 symbols. Each Nitro Reel that lands adds to the ways on that spin, which is how the studio’s count runs from 4,096 up into the millions.
Both Ways and the Nitro features
ELK Studios gives the game five Nitro features: Nitro Wild, Nitro Match, Nitro Upgrade, Both Ways and Redrop. Both Ways is the easiest to picture, because it lets wins pay from right to left as well as from the usual left to right, so a run of matching symbols can start from either edge of the grid. It is also built into the Super Bonus Game from the first spin.
The Bonus Game and the Super Bonus Game
Three or more bonus symbols trigger the Bonus Game, and the number of free spins depends on how many land: 8 for three, 12 for four, 16 for five and 20 for six. Every Nitro Reel that lands during the round is sticky, staying in place for the remaining spins. If a super bonus symbol is part of the triggering combination, the Super Bonus Game is played instead, and that version starts with the grid already at 8 rows and Both Ways switched on.
Nitropolis 3 compared with Ecuador Gold
Ecuador Gold is an ELK Studios slot with the same 6-reel shape: it also begins with 4 rows and 4,096 ways and adds rows up to 8, where it reaches 262,144 ways. Its signature is the ghosting wild, which moves a random number of steps across the grid and leaves wilds behind it. Nitropolis 3 has no roaming wild of that kind; its extra ways come from Nitro Reels that squeeze more symbols into single positions, and its bonus splits into a regular round and an 8-row Super Bonus Game.
| Game | Grid and ways | Signature feature |
|---|---|---|
| Nitropolis 3 | 6 reels, 4 rows at the start (4,096 ways), expanding up to 8 rows | Small and big Nitro Reels that hold extra symbols |
| Ecuador Gold | 6 reels, 4 to 8 rows, 4,096 to 262,144 ways | Ghosting wild that moves a random number of steps and leaves wilds behind |
All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time.
Nitropolis 3 at Fortune Games
Nitropolis 3 is with the slots in the Fortune Games lobby (18+), and the tiles above put it beside the other Nitropolis games, from the first to the fifth, plus Nitropolis TV. The UK caps in the table apply to every player. There is no autoplay or turbo mode, as at every site licensed in Great Britain. Fortune Games has an app on the App Store and Google Play.
Frequently asked questions
How many free spins can Nitropolis 3 give?
Between 8 and 20. Three bonus symbols start the Bonus Game with 8 free spins, and six bring the top award of 20. Nitro Reels that land during those spins stay sticky until the round ends, and if a super bonus symbol joins the trigger, the round becomes the Super Bonus Game instead.
Can wins pay from right to left in Nitropolis 3?
Yes, when the Both Ways feature is active. Normally ways are counted from the leftmost reel, but Both Ways also pays combinations that run from the right-hand side. It is one of the five Nitro features that can appear on a spin, and in the Super Bonus Game it is active from the start.
Where does the Nitropolis 3 story take place?
Away from the city. ELK Studios’ story has the Nitro gangs, overwhelmed by Sergeant Nitro Wolf, climbing into their blimp and fleeing Nitropolis for a beach hideout a little further south, which the studio calls Nitro Beach. That is why the blimp turns up on the bonus symbol, and why the third game is set on a tropical shore.
Related guides
Checked on 13 November 2026 against ELK Studios’ Nitropolis 3 game page, product sheet and game data sheet, the OLBG, PokerListings and Casinos.com records for the game, ELK Studios’ Ecuador Gold game page with the VegasSlotsOnline record, and the Gambling Commission’s stake-limit and online games design guidance. How we research and check our guides: our editorial policy.