Play 20,000 Leagues Under the Sea for Free

We won’t dive into the details of the origin tale, but it’s a classic adventure of a Victorian-era captain and his advanced submarine. The controls of the Nautilus sit to the sides and below the reels, against the backdrop of a huge window looking out on a watery world.

The symbols and surroundings have a graphic novel style to them, which is a good match for the game. Playing card icons that look like bits of pipework with strange energy surrounding them pay the smaller prizes. You win more from various characters, plus a sea lion, and the dashing Captain Nemo himself.

It’s a good-looking online slot themed around an underwater adventure. The orchestral soundtrack would complement any movie themed around the story, although you can mute it if you want a bit of silent running.

The 20,000 Leagues Under the Sea online slot comes from Probability Jones. This British developer isn’t the most well-known in the business, but they have launched a number of high-quality games since 2016.

You win by landing matching symbols on adjacent reels, starting from the left. The four rows give you a grand total of 1,024 different ways to land a winning combination. If you just want to dip your toes into this virtual ocean, you can play 20,000 Leagues Under the Sea for free on this page. Then play for real cash from just 0.50 per spin, to a maximum of 100.00.

Our paylines table reveals how many coins you win for each combination with a standard 50-coin bet –

The 20,000 Leagues Under the Sea slot machine pays back at a long-term average of 95.94%.

Winning symbols vanish from the reels, leaving space for those above to drop into. This cascading reels mechanism can create further wins, which trigger more cascades. Each cascade adds to a Dive Meter to the left of the reels. As the Nautilus goes deeper, lower value symbols get removed from the reels for the next cascade in a sequence, making it easier to land high-paying combinations.

Various random modifiers can influence the gameplay of the 20,000 Leagues Under the Sea online slot. As the depth meter rises, it becomes more likely that bubbles burst through the reels, leaving a trail of wild symbols behind.

A giant squid can rise from the depths, but it’s nothing to fear, as the tentacles of this marauding mollusk rearrange symbols for a guaranteed win.

The squid also triggers five, ten, or 20 free spins when landing in three, four, or five places at once. Hold your nerve during this round, as you claim unique Nerve Points when a blue symbol stops on the right-side reel. It adds extra spins to the round, but a red symbol takes them away.

After every fifth win in this feature of the 20,000 Leagues Under the Sea online slot, a win multiplier activates for the rest of the round. If the Nerve Points are in your favor and you get enough free games, you could see payouts multiplied by the maximum of five times over.

As an extra treat, a diver in classic underwater gear is a stacked wild symbol throughout the free games.

Giant squid populate the reels of the Leagues of Fortune slot from Microgaming. It’s another 1,024 ways to win game, where Nemo pays the highest prizes. Trigger the free games feature, and the tentacles of a squid reveal how many spins play out and any win multipliers that apply throughout.

You could be kraken open the Champagne if you land the top prizes from the Eye of the Kraken online slot from Play’n GO. The crew of the Nautilus encounters the famous beast over a 3x3 grid of symbols, where free spins and wild tentacles await the brave.

The 20,000 Leagues Under the Sea slot machine isn’t quite as ingenious as Nemo and his fantastic craft, but it’s not far off. The Dive Meter is particularly innovative, and as the reels start to fill with higher-value symbols, you can claim some awesome prizes.

Cascading reels, guaranteed wins, and wild bubbles place this game leagues ahead of many others. Take the plunge and play the 20,000 Leagues Under the Sea slot online. You’ll find it at some of our favorite online and mobile casinos.