Ocean Slots

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Where and how to play free Ocean slot machines

Ocean slots

As deep the oceans are, the broader the choice of ocean slot games is. You can discover the water's hidden treasures and creatures with a simple turn of the reels. They're available both in demo mode without registration at CasinoRobots.com or for real at any online casino.

Their blueish colors and calming soundtracks of bubbles coming up the water are all you need after a long day at work.

Ocean slot machines - overview, history

With the rise of the popularity of movies like Aquaman and ones with mermaids, people are very fascinated with the underwater world. Thus, providers started to come up with lots of ocean-themed slot machines. They could have 3D graphics or just a plain design, but you'll always feel at home in the underwater kingdom.

Slots with an Ocean theme – which symbols are typical

For ocean-themed one-armed bandits, the most typical symbols you can find are those of mermaids, seashells, crabs, oysters, dolphins, treasure chests, and more.

With most of these games, players get to explore the waters alongside sea creatures and strive to find hidden treasures.

There are even some ocean-themed slot games with pirates where the rum fills up the glasses and gold is filling up your ship.

Everything ocean-themed is available for those who seek adventure. With that said, you'll also love adventure slots just as much.

Popular slots with an Ocean theme

To make sure that finding your perfect ocean-themed slot is smooth, check out our top 3 favorite slots with this theme.

Dolphin Treasure

This slot is created by Aristocrat studios, and it has five reels and 20 pay lines. Its features include Free Spins, Multipliers, Scatters, Wilds, etc. Its RTP is 94.88%.

Lord of the Ocean

Lord of the Ocean is a Novomatic slot with five reels and 10 pay lines. Its RTP is 95.1%, and it has Free Spins, Wilds, and Scatters as bonus features.

Mermaids Millions

Microgaming is once again doing some impressive work with Mermaids Millions. This video slot has 5 reels and 15 pay lines. Its RTP is 96.56%.

Bonus rounds and payouts of Ocean themed online slot games

With ocean-themed slots, the bonus rounds are similar as they come in Free Spins or Wilds/Scatters variations. Here and there, you might see a multiplier bar that can help you double your payouts.

When talking about payouts, it's different with each slot. It depends on the features, volatility, and RTP. Plus the betting amount you put in. There is no average amount to give.

Return to players RTP and strategies when playing casino games with Ocean theme

The RTP of ocean-themed slot machines can vary between 94% and 96%, somewhere between the low bar and the average bar of the RTP. We suggest you play slots with a higher RTP. The higher it is, the better chances of getting payouts.

When trying to win, keep in mind that luck and nothing else can help you do that. No strategy is fool-proof.

Ocean online slots software providers

Several providers have created ocean-themed slots. To make it easier for you, we have listed some of our favorites down below. You're welcome!

  • NetEnt
  • Microgaming
  • Novomatic
  • EGT
  • Amatic
  • Betsoft

Are there any Ocean-themed slots available for mobile devices

Yes, there are ocean-themed slots available on mobile. You can play them on any smartphone or tablet with iOS or Android operating systems. All you need is a strong WIFI connection and a browser. Some casinos require you to install an app, but the HTML5 technology makes it possible to play on a browser in most cases.


Ocean-themed slots are an excellent way for gamblers to immerse themselves in the peaceful and enchanting underwater world. If you like these slots with a central theme of mermaids, then you'll love dragons slots. Both kinds have mysterious creatures and an experience like no other.


Are ocean-themed slots available on mobile devices?
Yes, they're available on all mobile devices, and you can take your favorite ocean-themed slots everywhere. The fun never stops!
Can I play ocean-themed slot machines without registration?
You can play ocean-themed slots for free without registering right here at CasinoRobots.com. This way is better for new players that don't have much experience with real bets.
Are ocean-themed slots safe to play?
They're safe to play if the provider is competent enough to have a Random Number Generator that evaluates fair gameplay.
Are ocean-themed slot games exciting?
They're real treasures that you can enjoy both on desktop and mobile. When vacations are far from reach, bask in the calm waters of the ocean. Be careful not to disturb them because the pirates might hear you!

Overall rating of Ocean slots by Casino Robots

Casino Games: Ocean Slots; Requires: Browser with HTML5 support and web device with OS like: Windows, Android, iOS, Linux, etc.; Type: Game; Price: Free (0); Rating: 9.81 out of 10