Best Online Slots with High Volatility

Slots, Casino, Jewels, Jackpot, Millions, Items

Looking for a list of high volatility slot machines with innovative features and potentially massive payouts? I can help with my selection of titles that can give you a truly wild ride.

I’ve picked the best high volatility slots based on the following criteria: RTP, volatility, bonus features, payouts, and overall player experience. I tried them all personally before listing them and can vouch that they’re top-quality slots. I’ve also added recommended casinos where you can try the games for yourself.

So, what are the top-rated high volatility slots as of today? Let’s start with a jackpot game and go from there!

Aztec’s Millions

  • Developer: RTG
  • RTP: 96%
  • Jackpot: Yes

Aztec’s Millions is one of the top RTG slots, period, but it’s also one of its high volatility slots. Expect some long dry spells followed by explosive wins as you play this Aztec-themed jackpot slot.

This game has two bonus features: the free spins round and the progressive jackpot feature. You trigger the free spins by getting at least three scatters on the reels (up to 25 spins). It’s also one of the top jackpot slots: the jackpot can be seen above the reels and can be won on any random spin.

You can play Aztec’s Millions at Las Atlantis Casino. It has a welcome package worth $9,500 and over 100 great RTG slots to choose from.

Bubble Bubble 2

  • Developer: RTG
  • RTP: 95%
  • Jackpot: No

Bubble Bubble 2 is the sequel to the player-favorite RTG slot Bubble Bubble. It’s all about witches with symbols such as candles, potions, animal skulls, black cats, and cauldrons on the reels.

In terms of features, this game has three. Wild Witch symbols multiply wins by 3x. There are three free spins features – Greater Ghosts, Wilder Witches, or Ultra Bewitched – offering 20, 9, and 7 spins, respectively. All free rounds have extra wilds or special wilds.

You can play Bubble Bubble 2 at El Royale Casino. It has a $7,500 welcome bonus, offers dozens of high volatility slot machines, and supports fast, secure payouts via crypto. It’s one of my top-rated casinos for US players.

Mr. Vegas 2: Big Money Tower

  • Developer: Betsoft
  • RTP: 96.06%
  • Jackpot: Yes

Betsoft calls this a ‘very high’ volatility slot, so be prepared for that. Mr. Vegas is back in Sin City with this slot. Symbols like roulette wheels, dice, playing cards, casino chips, and diamonds adorn the reels, along with 3D characters like Mr. Vegas and showgirls.

This slot has a few unique features. Stacked mystery symbols make winning easier, as do up to 15 free spins with random wilds. The highlight is the Big Money Tower, in which you climb up the rungs of a tower, flipping a coin at each level to either collect the prize or go higher to bigger wins.

You can play this slot at Super Slots. With a $6,000 welcome bonus and hundreds of top-notch slots to choose from, this casino is one of the best options for dedicated slots enthusiasts.

Immortal Romance

  • Developer: Microgaming
  • RTP: 96.86%
  • Jackpot: No

After the popularity of Twilight, a whole bunch of vampire slots appeared online. Immortal Romance is Microgaming’s best effort that has remained hugely popular with players years after its release. You’ll see leather spell books, potions, and vampires on the reels.

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Immortal Romance has some noteworthy features. The Wild Desire feature can turn five reels completely wild. There are also four free spins features, one for each character, with up to 25 free spins and extra features like added wilds, rolling reels, and multipliers.

You can play Immortal Romance and other high volatility slot games at Betway. This is my top-rated casino site for UK and Canadian players. With generous welcome packages, ongoing rewards and reloads, and a trusted UKGC iGaming license, Betway is a great choice for non-US slots players.

Fire in the Hole

  • Developer: Nolimit City
  • RTP: 96.06%
  • Jackpot: No

I’ve been playing more Nolimit City video slots these last few years. This growing firm keeps releasing high volatile slots that rival much bigger software firms in terms of quality. This one has a mining theme with dynamite, lamps, pickaxes, and other mining symbols.

Fire in the Hole has a few awesome features. Collapsing mines are similar to rolling reels or avalanches, with new symbols replacing ones that form winning combos, expanding the number of ways to win each time.

xBomb multipliers explode and destroy other symbols around them, increasing the multiplier by 1x. This can happen multiple times in a row for large multipliers.

There’s also a Lucky Wagon free spins feature. You start with three free spins, and each time you land a gold coin, the counter is reset to three as a cash payout is awarded. Multipliers move across the top of the reels in mine carts, potentially boosting your payouts.

You can play Fire in the Hole and other slots with high volatility at PlayAmo. There’s a 100% welcome bonus of up to $100 + 100 free spins for all new depositors, and this casino knows how to look after regular players. Best of all, it has a massive library of slots to choose from!

Spring Tails

  • Developer: Betsoft
  • RTP: 95.9%
  • Jackpot: No

Spring Tails is one of the best Betsoft slots I’ve played in a long time. It follows a 3D rat in China and is themed on the Year of the Rat. Symbols include lucky coins, bags of rice, cheese, peanuts, and gems. There’s a traditional temple by the mountains in the background.

Lucky Rats multiply wins by up to 5x throughout this game. There’s also a free spins feature with 12 spins up for grabs and all low-value symbols removed.

You can play this and other high volatility video slots at Bovada. With a $3,000 welcome bonus, this crypto-friendly casino site offers it all: slots, poker, and sports betting.


  • Developer: Betsoft
  • RTP: 96.46%
  • Jackpot: No

Betsoft is always pushing the envelope and innovating, and this game is a good example of that. It has a gemstones theme with a unique game engine that gives it up to 40,503 ways to win on a 9×9 grid.

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In this slot, payouts are awarded when symbols touch each other instead of via standard paylines. Larger symbols are also worth more than smaller ones. Rainbow-tinted gems act as wilds, while gem clusters activate free spins.

You can play Gemmed! at Wild Casino. With a $5,000 welcome package and tons of high volatility slots to choose from, I strongly recommend checking it out. And yes, it’s a US-friendly slot site.

Gavin Lucas
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About Gavin Lucas
Hi! I’m Gavin Lucas, a gambling enthusiast with a particular love for video slots and live casino games. I have been writing about gambling online since 2015, and am always keen to try new games as soon as they’re released. Other than gambling, I’m obsessed with technology and I've written numerous articles for CoinGeek on the topic. I’m fascinated by how online gambling will be changed by blockchain technology, micropayments, and the Metaverse. Having tested several blockchain casinos already, I believe I can see what casinos will look like 10 years from now, and I enjoy sharing that vision with others.