HomeGamesOceanic and Sea-Themed Games Free Play

Oceanic and Sea-Themed Games Free Play

Oceanic and Sea-Themed Games. ✅ Free casino games and slots. ✅ No download, no registration required. ✅ Play for free in demo mode.
1Advanced filter
Slots566
Roulette0
Blackjack0
Video poker0
Bingo2
Baccarat0
Live games0
Craps and dice0
Keno0
Scratch cards1
Other games9
Crash games0
578 games found
Sort
Shark Wash
Play for Free
Loading preview...
Shark Wash by Relax Gaming
Castaway Slot
Play for Free
Loading preview...
Castaway Slot by MultiSlot
Tropical Aquarium
Play for Free
Loading preview...
Tropical Aquarium by MultiSlot
Undersea Adventure
Play for Free
Loading preview...
Undersea Adventure by MultiSlot
Mermaid's Treasure
Play for Free
Loading preview...
Mermaid's Treasure by Naga Games
Beast Below
Play for Free
Loading preview...
Beast Below by Hacksaw Gaming
9 Pearls of Fortune
Play for Free
Loading preview...
9 Pearls of Fortune by iSoftBet
Cash Falls Island Bounty
Play for Free
Loading preview...
Cash Falls Island Bounty by Light & Wonder
Double Dolphin Jackpot
Play for Free
Loading preview...
Double Dolphin Jackpot by Manna Play
Sea Treasure Deep Dive
Play for Free
Loading preview...
Sea Treasure Deep Dive by OneTouch
Sea Treasure (OneTouch)
Play for Free
Loading preview...
Sea Treasure (OneTouch) by OneTouch
20000 Leagues Under the Sea
Play for Free
Loading preview...
20000 Leagues Under the Sea by Ready Play Gaming
Dolphin Bay
Play for Free
Loading preview...
Dolphin Bay by Ready Play Gaming
Lucky Turtle
Play for Free
Loading preview...
Lucky Turtle by Ready Play Gaming
Majestic Mermaid
Play for Free
Loading preview...
Majestic Mermaid by Rival
Poseidon's Rising - The Golden Era
Play for Free
Loading preview...
Poseidon's Rising - The Golden Era by Spinomenal
Lucky Plunder
Play for Free
Loading preview...
Lucky Plunder by FlipLuck Games
Undersea Treasure
Play for Free
Loading preview...
Undersea Treasure by BeGames
Rise of Atlantis
Play for Free
Loading preview...
Rise of Atlantis by Blueprint Gaming
Mermaid
Play for Free
Loading preview...
Mermaid by Royal Slot Gaming (RSG)
Show More Games (+20)
Author: Juraj Torok Last updated: 10 Sep 2026
578 games found based on your search. Showing 321 - 340
    1...16 17 18...29
    Go to pageof 29 pages
Filter
Ocean and sea
Clear all filters
Game Type
Slots, Roulette, Blackjack, Video poker, Bingo, Baccarat
Slots 566 Roulette 0 Blackjack 0 Video poker 0 Bingo 2 Baccarat 0
Live games 0
All 0 Live shows 0 Live baccarat 0 Live bingo 0 Live blackjack 0 Live dice games 0 Other live games 0 Live poker 0 Live roulette 0
Craps and dice 0 Keno 0 Scratch cards 1 Other games 9 Crash games 0
Game Provider
Realtime Gaming, NetEnt, Rival, Nolimit City, Betsoft Gaming
Realtime Gaming 5 NetEnt 7 Rival 4 Nolimit City 2 Betsoft Gaming 2 TaDa Gaming 2 Pragmatic Play 25 Playtech 7 Novomatic 9 Apricot (Microgaming) 4 IGT 6 ELK Studios 3 Big Time Gaming 1 Scientific Games 0 Yggdrasil Gaming 12 Tom Horn 1 Quickspin 0 Evoplay 4 Push Gaming 5 Eyecon 0 Evolution Gaming 0 Saucify 2 SA Gaming 1 BGaming 4 GameArt 6 Play'n GO 15 Red Tiger Gaming 8 Endorphina 1 Bally's Corporation 0 Barcrest 1 WMS 4 Blueprint Gaming 12 Wazdan 2 PariPlay 3 Habanero 9 Lightning Box 3 Playson 1 Nextgen Gaming 2 iSoftBet 6 Merkur Gaming 1 Nektan 1 Amatic 9 Red Rake Gaming 2 Thunderkick 3 Leander Games 3 Spinomenal 10 Rabcat 1 Ezugi 0 Igrosoft 0 1X2 Gaming 2 Booming Games 7 2By2 Gaming 1 Iron Dog Studio 4 WGS Technology (Wager Gaming) 0 Realistic Games 1 High 5 Games 11 Genesis Gaming 0 Ash Gaming (Playtech) 0 NeoGames 0 Belatra Games 1 Booongo (BNG) 0 MrSlotty 2 Relax Gaming 10 Dream Play 1 edict 0 MultiSlot 3 TOPTrend Gaming 4 Greentube 2 Genii 1 Arrow's Edge 1 Ainsworth Game Technology 0 Gaming1 0
Game Theme
5-Reels, 6-Reels, Sweets, Mythology, Ocean and sea, Western
10-Reels +4 3-Reels +1,684 4-Reels +263 5-Reels +15,500 6-Reels +2,090 7-Reels +207 8-Reels +47 Adventure +359 Aliens +125 American +293 Animals +1,791 Anime +52 Arabian +156 Arcade +122 Asian +1,520 Astrology +71 Aztecs +293 Cards +293 Cars +123 Christmas +487 Classics and retro +340 Comics +146 Crime +362 Earth Day +16 Easter +80 Egypt +960 Fairy tales +226 Fantasy +119 Farm and Garden +110 Fireworks +33 Fishing +182 Food +396 Fortune +575 Fruits +2,713 Gangsters +103 Gems and diamonds +510 Gods +371 Halloween +150 History +217 Holiday +349 Horror and scary +515 Irish +411 Japan +447 Jungle +235 Knights and Dragons +69 Love and romance +119 Magic +364 Medieval +265 Megaways +387 Mexico +158 Military +143 Mining +177 Money and wealth +596 Movies and tv +194 Music +284 Mythology +832 Nature +850 Ninja +65 Ocean and seaPachinko +2 Pirates +302 Qatar World Cup 2022 +12 Relax +417 Samurai +52 Sci-fi +77 Space and galaxy +208 Sport +365 Summer +134 Super heroes +49 Sweets +329 Technology +177 Vampires +16 Vikings +162 Western +341 Winter +365 Winter Olympics +5
Game Features
Filter by available features
Double-up option 90 Configurable lines 86 Jackpot games 129 Bonus Buy 66
Other
Other filters
Featured games 42 Reviewed games 45 Released last month 4
Payout System
Winlines, any way wins, pay anywhere, etc.
Classic winlines 468 Cluster pays 14 Pay anywhere 15 Any ways wins 67 Other 0
Winlines
1
500000000
Reels and Rows
Filter by reels and rows
Number of reels
1
50000
Number of rows
1
50000
Return to Player
Filter by RTP percentage
Return to Player
50%
100%
Clear all Filter (578)
Oceanic and Sea-Themed Games | Play Free Casino Games and Slots
Top pages
Trending pages
Casino Guru
About us
Casino Guru Academy
null

Free professional educational courses for online casino employees aimed at industry best practices, improving player experience, and fair approach to gambling.

Global Self-Exclusion Initiative
null

An initiative we launched with the goal to create a global self-exclusion system, which will allow vulnerable players to block their access to all online gambling opportunities.

Gamtegrity
null

A platform created to showcase all of our efforts aimed at bringing the vision of a safer and more transparent online gambling industry to reality.

Casino Guru Awards
null

An ambitious project whose goal is to celebrate the greatest and the most responsible companies in iGaming and give them the recognition they deserve.

Play responsibly and in moderation.

Casino.guru is an independent source of information about online casinos and online casino games, not controlled by any gambling operator. All our reviews and guides are created honestly, according to the best knowledge and judgement of the members of our independent expert team; however, they are intended for informative purposes only and should not be construed as, nor relied upon as, legal advice. You should always make sure that you meet all regulatory requirements before playing in any selected casino. Copyright ©2026

Casino Guru in other languages
Select language

Follow us on social media – Daily posts, no deposit bonuses, new slots, and more