Top underwater online slots

UNDERWATER Online Slots – Ranked List & Best Casinos

If you're looking for the top-rated underwater-themed slots, you've come to the right place! We've compiled an updated list based on CGSCORE, featuring the best underwater-themed slots available online. Play free demos to explore the gameplay risk-free, and master the rules without any cost!

Where to Play UNDERWATER-Themed Slots for Real Money

Ready to move beyond free demos? Discover safe and trusted online casinos offering underwater-themed slots and claim exclusive bonus deals from our recommended real-money casinos. Whether you're chasing big wins or exciting gameplay, these top-tier casinos provide the ultimate underwater experience!

 Top SlotsNew SlotsUpcomingFree Slots No Download Top Free underwater Slots Boat Bonanza Down Under
CGSCORE 73
Playn Go Boat Bonanza Down Under
Max Win: 6000x
RTP: 96.25%
 Otterly Amazing
CGSCORE 72
Blue Guru Games Otterly Amazing
Max Win: 17752x
RTP: 96.09%
 Release the Kraken
CGSCORE 72
Pragmatic Play Release the Kraken
Max Win: 10000x
RTP: 96.5%
 Treasure Trawler
CGSCORE 72
Pragmatic Play Treasure Trawler
Max Win: 5000x
RTP: 96.54%
 Giga Bass GigaBlox
CGSCORE 72
ReelPlay Giga Bass GigaBlox
Max Win: 10245x
RTP: 96%
 Neptunes Quest
CGSCORE 72
Williams Interactive Neptunes Quest
Max Win: x
RTP: 96.39%
 East Sea Dragon King
CGSCORE 71
NetEnt East Sea Dragon King
Max Win: 6000x
RTP: 96.23%
 Beware the Deep Megaways
CGSCORE 71
Pragmatic Play Beware the Deep Megaways
Max Win: 10000x
RTP: 96.54%
 Ocean Rush
CGSCORE 71
Jackpot!
EGT Ocean Rush
Max Win: 5000x
RTP: 96.36%
 Beat the Beast Krakens Lair
CGSCORE 71
Thunderkick Beat the Beast Krakens Lair
Max Win: 7777x
RTP: 96.12%
 Jellyfish Flow
CGSCORE 71
Habanero Jellyfish Flow
Max Win: 32416x
RTP: 96.69%
 Krakens Hunger
CGSCORE 71
BGaming Krakens Hunger
Max Win: 5000x
RTP: 97.2%
 Reel Em In Tournament Fishing
CGSCORE 71
Light and Wonder Reel Em In Tournament Fishing
Max Win: 1015x
RTP: 96.1%
 Lord of the Ocean Magic
CGSCORE 71
Novomatic Lord of the Ocean Magic
Max Win: 5000x
RTP: 95.01%
 Epic Fish Adventure
CGSCORE 71
Quickspin Epic Fish Adventure
Max Win: 5190x
RTP: 96.07%
 Sea Hunter
CGSCORE 71
Playn Go Sea Hunter
Max Win: 1875x
RTP: 96.64%
 Secrets of Atlantis
CGSCORE 71
NetEnt Secrets of Atlantis
Max Win: 3200x
RTP: 97.07%
 Mermaids Diamond
CGSCORE 70
Playn Go Mermaids Diamond
Max Win: 5000x
RTP: 96.5%
 Fishin Frenzy The Big Catch
CGSCORE 70
Blueprint Fishin Frenzy The Big Catch
Max Win: 50000x
RTP: 95.32%
 Oceans Treasure
CGSCORE 70
NetEnt Oceans Treasure
Max Win: 1200x
RTP: 95.99%
 Mermaids Pearls
CGSCORE 70
Realtime Gaming Mermaids Pearls Ice Lobster
CGSCORE 70
Pragmatic Play Ice Lobster
Max Win: 5000x
RTP: 96.06%
 Wild Wild Pearls
CGSCORE 70
Pragmatic Play Wild Wild Pearls
Max Win: 5000x
RTP: 96.46%
 Trophy Fish
CGSCORE 70
Red Tiger Gaming Trophy Fish
Max Win: 27109x
RTP: 95.71%
 << Prev 1 2 3 4 5 6 Next >> Back to top Play UNDERWATER Slots for Real Money Here ⬇
Bitstarz Casino Rating 4.9/5 53+ Game Providers

Curacao-License

 Exclusive Bonus
125% up to €100 + 180 FS*
bonusinfo There is a No Deposit Bonus available: 20 Free Spins
Bonus T&C Apply No bonus code required Min. deposit: €20 Wager requirement: 40X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Winz.io Casino Rating 4.9/5 126+ Game Providers

Curacao-License

 1st Deposit Bonus
$/€10000 in Wheel of Winz (Wager Free)*
Bonus T&C Apply Bonus code: WOW Min. deposit: 0.004 BTC / $/€100 Wager requirement: 0X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Slot Hunter Casino Rating 4.9/5 83+ Game Providers

Malta-License (EU)

 1st Deposit Bonus
100% up to $/€1000 + 100 Free Spins*
bonusinfo There is a No Deposit Bonus available: 25 Free Spins
Bonus T&C Apply No bonus code required Min. deposit: €/$20 Wager requirement: 50X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Tsars Casino Rating 4.9/5 90+ Game Providers

Curacao-License

 1st Deposit Bonus
100% up to €300 + 100 Free Spins*
Bonus T&C Apply No bonus code required Min. deposit: €20 Wager requirement: 25X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Betsson Casino Rating 4.9/5 134+ Game Providers

Malta-License (EU)

 1st Deposit Bonus
100% up to €100 + 600 Free Spins*
Bonus T&C Apply No bonus code required Min. deposit: €10 Wager requirement: 35X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Stake Casino Rating 4.8/5 58+ Game Providers

Curacao-License

 Exclusive Bonus
100% up to $300*
Bonus T&C Apply No bonus code required Min. deposit: $50 / 0.002 BTC Wager requirement: 30X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Kryptosino Rating 4.8/5 108+ Game Providers

Curacao-License

 Exclusive Bonus
300% up to €/$600*
bonusinfo There is a No Deposit Bonus available: 25 Free Spins (Wager Free)
Bonus T&C Apply Bonus code: MEGA300 Min. deposit: $/€100 / 0.005 BT Wager requirement: 60X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Campeonbet Rating 4.8/5 89+ Game Providers

Curacao-License

 1st Deposit Bonus
140% up to €1500*
Bonus T&C Apply No bonus code required Min. deposit: €30 Wager requirement: 50X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. National Casino Rating 4.8/5 161+ Game Providers

Curacao-License

 1st Deposit Bonus
100% up to $/€100 + 100 Free Spins*
bonusinfo There is a No Deposit Bonus available: 25 Free Spins
Bonus T&C Apply No bonus code required Min. deposit: €20 Wager requirement: 40X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Malina Rating 4.8/5 55+ Game Providers

Curacao-License

 1st Deposit Bonus
100% up to €500 + 200 Free Spins*
Bonus T&C Apply No bonus code required Min. deposit: €20 Wager requirement: 30X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Vave Casino Rating 4.8/5 149+ Game Providers

Curacao-License

 1st Deposit Bonus
150% up to 1.5 BTC + 100 Free Spins*
Bonus T&C Apply No bonus code required Min. deposit: 0.001 BTC / 20 USDT Wager requirement: 1X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Betsafe Casino Rating 4.8/5 134+ Game Providers

Malta-License (EU)

 1st Deposit Bonus
100% up to €100 + 150 Free Spins*
Bonus T&C Apply No bonus code required Min. deposit: €10 Wager requirement: 35X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. 22Bet Casino Rating 4.8/5 143+ Game Providers

Curacao-License

 1st Deposit Bonus
100% up to $/€300*
Bonus T&C Apply No bonus code required Min. deposit: $/€1 Wager requirement: 50X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. N1 Casino Rating 4.8/5 81+ Game Providers

Malta-License (EU)

 Exclusive Bonus
200% up to €/$150 + 50 Free Spins*
Bonus T&C Apply No bonus code required Min. deposit: €/$20 Wager requirement: 50X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Drip Casino Rating 4.8/5 93+ Game Providers

Curacao-License

 1st Deposit Bonus
150% up to $/€600*
bonusinfo There is a No Deposit Bonus available: 50 Free Spins
Bonus T&C Apply No bonus code required Min. deposit: $/€20 Wager requirement: 40X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country.
TOP CASINOS
Dragon Slots Casino Dragon Slots
HitNSpin Casino HitNSpin
CasinoOrca Casino CasinoOrca
Bizzo Bizzo
BassBet BassBet
Starda Starda
More online casinos