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Sea Creatures-Themed Casino Games in Ireland

45 games from 24 providers • Up to 97.0% RTP

Top Pick · Sea Creatures-Themed Casino Games
#1
1xBet

1xBet

9.4/10Editor score
Games available
26
Sea Creatures-Themed Casino Games
Up to €1,500 + 150 Free Spins casino welcome package

Licensed by Revenue CommissionersTerminus Platform Ireland LimitedNo. 1019276 (Checked October 1, 2026)

18+18+ | New customers in IE only | T&Cs, wagering requirements and payment exclusions may apply | Gamble responsibly
#2
TonyBet

TonyBet

8.2/10Editor score
Games available
34
Sea Creatures-Themed Casino Games
Up to €1,050 + 150 Bonus Spins across your first two deposits

Licensed by GRAITonyBet OÜNo. GRAI-0191-RB-26-0001 (Checked October 7, 2026)

Casino: Estonian Tax and Customs BoardTonyBet OÜNo. HKL000393 & HKL000098

18+18+ | New customers in IE only | T&Cs, wagering requirements and payment exclusions may apply | Gamble responsibly
#3
Midnite

Midnite

9.0/10Editor score
Games available
14
Sea Creatures-Themed Casino Games
Wager €20, get 100 Free Spins on Big Bass Splash

Licensed by GRAIMidnite Europe LimitedNo. GRAI-0767-RB-26-0001 (Checked October 1, 2026)

18+18+ | New customers in IE only | T&Cs, wagering requirements and payment exclusions may apply | Gamble responsibly

Filters

45 results
Type
Provider
Volatility
Min. RTP
Kingfisher Bubbles Frame FrenzyNewHigh

Kingfisher Bubbles Frame Frenzy

Games Global

RTP 92.02%2 casinos
Fishin Frenzy Even Bigger CatchMedium

Fishin Frenzy Even Bigger Catch

Blueprint Gaming

RTP 93.00%4 casinos
Razor Shark JackpotsNewMedium

Razor Shark Jackpots

Push Gaming

RTP 94.30%2 casinos
Big Catch Bass Fishing MegawaysHigh

Big Catch Bass Fishing Megaways

Blueprint Gaming

RTP 93.00%4 casinos
Crabbin' for Cash Extra Big SplashHigh

Crabbin' for Cash Extra Big Splash

Blueprint Gaming

RTP 93.00%4 casinos
Dj FoxHigh

Dj Fox

Push Gaming

RTP 94.31%1 casino
Piranha PaysHigh

Piranha Pays

Play'n GO

RTP 96.20%3 casinos
Beware The Deep MegawaysLow

Beware The Deep Megaways

Pragmatic Play

RTP 96.54%4 casinos
Captain Skull and the Squidly SeasHigh

Captain Skull and the Squidly Seas

Games Global

RTP 94.00%3 casinos
Mighty Fish: Blue MarlinHigh

Mighty Fish: Blue Marlin

Wazdan

RTP 96.18%3 casinos
Oxygen 2Very High

Oxygen 2

ELK Studios

RTP 94.10%3 casinos
Orbs Of AtlantisMedium

Orbs Of Atlantis

Habanero

RTP 97.00%2 casinos
Hey SushiHigh

Hey Sushi

Habanero

RTP 97.00%1 casino
Gold of Sirens Bonus BuyHigh

Gold of Sirens Bonus Buy

Evoplay

RTP 96.18%3 casinos
Siren's SpellHigh

Siren's Spell

Habanero

RTP 97.00%1 casino
Luminous LifeHigh

Luminous Life

Playtech

RTP 94.44%2 casinos
OxygenHigh

Oxygen

ELK Studios

RTP 94.10%3 casinos
Bait ‘n’ BankLow

Bait ‘n’ Bank

Push Gaming

RTP 94.38%1 casino
Give Me Gold Mo FishMedium

Give Me Gold Mo Fish

Games Global

RTP 92.10%2 casinos
Mermaid FrenzyMedium

Mermaid Frenzy

Games Global

RTP 92.24%1 casino
Oxygen 3High

Oxygen 3

ELK Studios

RTP 94.00%3 casinos
Pearls Pearls PearlsHigh

Pearls Pearls Pearls

Playtech

RTP 96.50%2 casinos
Age of PiratesMedium

Age of Pirates

Spinomenal

RTP 91.59%3 casinos
Mega FishingMedium

Mega Fishing

TaDa Gaming

RTP 97.00%2 casinos
1xBet
1xBet
Up to €1,500 + 150 Free Spins casino welcome package
Play Now
4 Crabbin' FortunesHigh

4 Crabbin' Fortunes

Iron Dog Studio

RTP 91.06%3 casinos
Pool SharkHigh

Pool Shark

Habanero

RTP 93.41%2 casinos
Power of Atlantis TrioHigh

Power of Atlantis Trio

Booming Games

RTP 91.50%2 casinos
Sea of SpiritsHigh

Sea of Spirits

Push Gaming

RTP 94.28%1 casino
Aqua Lord 2High

Aqua Lord 2

Swintt

RTP 96.08%3 casinos
Bass BlitzHigh

Bass Blitz

Light & Wonder

RTP 92.01%1 casino
Book Of Sirens The Golden EraHigh

Book Of Sirens The Golden Era

Spinomenal

RTP 91.71%3 casinos
Cash ReefHigh

Cash Reef

Habanero

RTP 91.88%1 casino
Deep RushHigh

Deep Rush

Kalamba Games

RTP 96.32%1 casino
Treasure DiverMedium

Treasure Diver

Habanero

RTP 96.00%2 casinos
Cash Connection - Dolphin's PearlHigh

Cash Connection - Dolphin's Pearl

Greentube

RTP 95.00%1 casino
Clawsy CollectorHigh

Clawsy Collector

Bullshark Games

RTP 96.27%2 casinos
Epic Fish AdventureHigh

Epic Fish Adventure

Quickspin

RTP 92.07%1 casino
Mermaid ScratchMedium

Mermaid Scratch

Spinoro

RTP 92.56%2 casinos
Mermaids Millions CashingoVery High

Mermaids Millions Cashingo

Stormcraft Studios

RTP 92.00%1 casino
Squid From the DeepHigh

Squid From the Deep

BF Games

RTP 93.03%1 casino
Aqua LordHigh

Aqua Lord

Swintt

RTP 94.51%2 casinos
Colossal Splash Deep DiveHigh

Colossal Splash Deep Dive

Light & Wonder

RTP 94.04%1 casino
Fish and BirdHigh

Fish and Bird

ELK Studios

RTP 94.00%2 casinos
Roby DickHigh

Roby Dick

Yggdrasil

RTP 90.50%1 casino
Get KrakenHigh

Get Kraken

Yggdrasil

RTP 90.50%1 casino

Sea Creatures Casino Games in Ireland

What the sea creatures theme covers

This theme groups casino games built around sea creatures and marine-life subject matter. The selection is medium in size, with dozens of games, and includes more than one format. Slots make up almost all of the games; a few are Instant Games and a few are Slingo. Slots generally use spins and symbol combinations to determine outcomes. Instant Games focus on a direct game outcome, while Slingo combines slot-style reels with a bingo card.

Pragmatic Play and Play'n GO have the largest presence among the studios represented, followed by Habanero, Games Global and Relax Gaming. Other studios also appear in the theme. The mix gives players in Ireland several ways to explore the subject, even though slots dominate the selection.

Widely carried sea-creature games

Among the widely carried examples, Big Bass Secrets of the Golden Lake is a Pragmatic Play slot with a 94.07% RTP and High volatility. Pragmatic Play's Release the Kraken Megaways is a slot with a 92% RTP and Medium volatility.

Play'n GO's Boat Bonanza CrocoNile! is a slot with a 94.25% RTP and High volatility. Its Boat Bonanza Colossal Catch is a slot with a 94.58% RTP and Medium volatility. These figures can help compare titles, while the volatility label gives a broad indication of how variable outcomes may be.

Comparing games in Ireland

Return to player (RTP) is a theoretical long-run average for one game configuration, not a forecast for an individual session. A title's RTP can differ by operator configuration, so the game's information panel at the casino is the authority for the version you open. Sorting the theme list by RTP helps compare the displayed theoretical percentages; it does not predict results. Check volatility as a separate measure when narrowing your choices.

Casino availability is shown separately for players in Ireland. Visit the casinos page to check where games can be found, or browse the wider casino games selection to compare other themes and formats.

Frequently Asked Questions

Licensed Operators Only

Every outbound link on this site goes exclusively to gambling operators holding a valid Irish licence, issued by the Gambling Regulatory Authority of Ireland or by the Revenue Commissioners during the transition to the GRAI. We do not link to, promote or advertise operators that are not licensed in Ireland. As the GRAI does not yet issue online casino licences, each operator's casino product is licensed separately; both licences are shown on every review.

Registered entity: Adweb AB (Sweden) · Company registration number: 556652-1265

Our License

Adweb AB operates in compliance with applicable laws and regulations in Ireland and promotes only operators that hold a valid Irish licence, issued by the Gambling Regulatory Authority of Ireland (GRAI) or by the Revenue Commissioners and continued under the Gambling Regulation Act 2024 during the transition to the GRAI. As the GRAI does not yet issue online casino licences, each operator's casino product is licensed separately; both licences are shown on every review.

18+ only. Gamble responsibly. If gambling is affecting you, visit GamblingCare.ie or call 1800 936 725.

18+Gambling Regulatory Authority of Ireland
Gambling Regulatory Authority of IrelandThe Gameplan Hub IEIE National HelplineExtern Problem Gambling IE18+
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Information & Guidance

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