Nitropolis Slot by Elk Studios
Nitropolis is a 6-reel, 4-row ways slot with 85,155,840 ways to win by Elk Studios, released in 2020.
Game facts
| Provider | Elk Studios |
|---|---|
| Game type | Slots |
| Release date | November 2020 |
| RTP | 96.1% |
| Volatility | Medium-high volatility |
| Max win | 10,000x the bet |
| Reels × rows | 6 × 4 |
| Pays | 85,155,840 ways to win |
| Bet range | 0.20–100 |
| Bonus buy | Yes |
| Wild symbol | Yes |
| Jackpot | No |
| Features | Nitro ReelsWinning RespinsScatter paysX-iter |
| Themes | AnimalFuturistic |
| Devices | Desktop and mobile browsers (HTML5) |
| App | Yes — how to install |
Free demo of Nitropolis
Nitropolis also has a free demo mode with virtual credits.
The demo uses virtual credits: no deposit, no real-money wins.
Where to play for real money
18+ · T&Cs apply · Gamble responsibly · Offers for your country
Real-money play is only for adults and only at licensed online casinos where online gambling is legal for you.
How to play Nitropolis
Bet range: 0.20–100
- Match symbols on adjacent reels to form wins.
- Winning symbols stay in place for another spin.
- Three or more bonus symbols start free spins.
Bonus features
Free spins
3, 4, 5 or 6 bonus symbols award 10, 15, 20 or 25 free spins; 3 or more bonus symbols during the feature retrigger the same number of spins.
Bonus buy
Nitro Reels
blocks covering two positions on a reel hold 4, 6, 8, 10 or 12 symbols, raising the ways from 4,096 up to 85,155,840, and they can upgrade between respins.
Winning Respins
after every win the symbols in the win respin, and this repeats until no new win appears.
Wild
the mushroom cloud wild substitutes for all symbols except the bonus symbol and in free spins also counts toward scatter-pay wins.
Buy Bonus
a standard bonus or a super bonus with a guaranteed retrigger that adds an extra scatter-paying symbol.
Nitro Reels are blocks that cover two positions on a reel and hold 4 to 12 symbols, increasing the ways to win. During free spins, these blocks stick, and a randomly chosen symbol pays as a scatter when 3 or more land on different reels.
RTP and volatility
| RTP version | Return per 100 staked |
|---|---|
| 96.1% | 96.10 |
Medium-high volatility — With medium-high volatility, wins occur on average every 5.1 spins, so payouts can be substantial but come at wider intervals.
Nitropolis app: download and install
The Nitropolis app for Android downloads with the button on this page.
- Tap the download button on this page to get the installation file.
- When Android asks, allow your browser to install apps from this source.
- Open the downloaded file from your notifications or downloads folder.
- Confirm the installation when prompted.
FAQ
What is the RTP of Nitropolis?
The default RTP of Nitropolis is 96.1%.
What is the max win in Nitropolis?
The max win in Nitropolis is 10,000x the bet. At the maximum bet that is 1,000,000.
How volatile is Nitropolis?
Nitropolis has medium-high volatility. A win lands every 5.1 spins on average.
How do free spins work in Nitropolis?
3, 4, 5 or 6 bonus symbols award 10, 15, 20 or 25 free spins; 3 or more bonus symbols during the feature retrigger the same number of spins.
Can you buy the bonus in Nitropolis?
Yes, Nitropolis has a bonus buy.
What is the X-iter mechanic?
X-iter lets you choose different game modes, each with a different cost and a different chance of triggering the bonus feature.
Similar slots
18+. Gambling involves risk; play only where online casinos are legal for you.
Updated: Oct 29, 2026