Best Sea Games Underwater

199+ iOS apps & games curated and reviewed

4.3 avg rating
20 free apps & games
Updated May 2026

Sea Merge is the household name in sea games underwater, but it's far from the only option. We track 199+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Top Picks for Sea Games Underwater

Sea Merge: Fish Aquarium#1

Sea Merge: Fish Aquarium by MF GEIMS, OOO

Match 3 ocean: underwater game
Editor's Choice
🎮 Games
4.4😞(1.2K ratings)
FreeAdsIn-App Purchases
Sea Merge: Fish Aquarium screenshot 1
Sea Merge: Fish Aquarium screenshot 2
Sea Merge: Fish Aquarium screenshot 3
Sea Merge: Fish Aquarium screenshot 4
Sea Merge: Fish Aquarium screenshot 5

Transform an empty seabed into a vibrant ocean paradise. Solve match-3 puzzles to merge elements, restore a magical underwater kingdom, and discover diverse marine life. Build your own undersea world, collect resources, and evolve your fish.

What We Love

  • 🤩 Fun and addictive gameplay
  • 🐠 Cute sea creature designs
  • 🎨 Colorful and visually appealing

Room to Improve

  • 🐛 Frequent glitches and bugs
  • 🤯 Frustrating gameplay issues
  • 🔍 Lack of customer support
Dino Water World-Dinosaur game#3

Dino Water World-Dinosaur game by Free Pixel Games Ltd

Jurassic Battle and mini games
Worth Considering
🎮 Games
4.7😐(28K ratings)
FreeAdsIn-App Purchases
Dino Water World-Dinosaur game screenshot 1
Dino Water World-Dinosaur game screenshot 2
Dino Water World-Dinosaur game screenshot 3
Dino Water World-Dinosaur game screenshot 4
Dino Water World-Dinosaur game screenshot 5

Explore an underwater Jurassic world filled with diverse ocean dinosaurs and sharks. Breed new species, build your aquatic habitat, and engage in thrilling battles. Manage resources and evolve your creatures to create your unique prehistoric marine ecosystem.

What We Love

  • 👍 Nostalgic and fun gameplay
  • 🦕 Unique aquatic dinosaur creatures
  • 🎨 Appealing art style and graphics

Room to Improve

  • 💰 Excessive use of microtransactions and gems
  • 🕰️ Slow progression and high evolution costs
  • 🔍 Lack of control in battles

More Sea Games Underwater apps to explore

4
Tizi Town Little Mermaid Games
Tizi Town Little Mermaid Games
Tizi Town Little Mermaid Games
The Mega Princess Wonder World
Free

Explore a vibrant underwater world as a mermaid princess. Engage in exciting water games, dress-up, and interactive play across various themed locations like a hospital, supermarket, and salon. Designed for imaginative young explorers.

Underwater explorationMermaid dress-upPretend play locations (hospital, supermarket, salon)
🎮 Games
(1.8K)
free with in-app purchases
5
SEA Match Puzzle Game - Underwater World
SEA Match Puzzle Game - Underwater World
SEA Match Puzzle Game - Underwater World
by Teerawat Chotpongsathonkul
Free

Engage in a classic match-3 puzzle experience with beautiful underwater graphics and relaxing music. Connect three or more identical objects to clear them and earn points before time runs out. Progress through 50 challenging levels.

Match-3 puzzle gameplay50 levelsBeautiful graphics
🎮 Games
(1)
free
6
Fish Royale - Underwater Arena
Fish Royale - Underwater Arena
Fish Royale - Underwater Arena
Become the last one to survive
Free

Dive into a vibrant underwater arena and battle other fish. Grow by consuming smaller opponents to become the ultimate survivor in this competitive aquatic world. Can you outlast everyone else?

Underwater arena combatEat fish to grow largerLast fish standing survival
🎮 Games
(487)
ad-supported
7
You Sunk: submarine & warship
You Sunk: submarine & warship
You Sunk: submarine & warship
Sinking ships in naval warfare
Free

Command a submarine on a covert mission to sink enemy warships while avoiding friendly vessels and enemy fire. Utilize a variety of weapons, upgrade your submarine's capabilities, and strategically deploy power-ups to achieve victory in this naval combat simulation.

Multiple weapon typesEnemy and friendly ship typesDay/Night/Dawn settings
🎮 Games
(6.3K)
free with in-app purchases
8
Survival Underwater Shark Game
Survival Underwater Shark Game
Survival Underwater Shark Game
Real Shark Ocean Survival Game
Free

Experience life as a shark in this ocean survival game. Hunt various sea creatures and unsuspecting humans to satisfy your hunger and complete thrilling missions in a deep-sea environment. Customize your shark and enjoy stunning animations.

Multiple shark hunting missionsSmooth gameplay with visual effectsShark skin customization
🎮 Games
(7.1K)
free with in-app purchases
9
Dinosaur Submarine for toddler
Dinosaur Submarine for toddler
Dinosaur Submarine for toddler
Ocean adventure games for kids
Free

Explore the ocean depths in an exciting underwater adventure. Discover marine life, shipwrecks, and hidden treasures while piloting a submarine. This game combines learning with fun for young explorers.

Ocean explorationMarine animal interactionSubmarine navigation
📚 Education
(5.6K)
free with in-app purchases
10
Princess Mermaid Simulator 3D
Princess Mermaid Simulator 3D
Princess Mermaid Simulator 3D
Underwater Princess Adventure
Free

Experience underwater life as a hungry mermaid. Explore the ocean, hunt for food, and engage in thrilling sea animal attacks. Survive by managing your health and energy while enjoying stunning aquatic environments.

Mermaid simulationUnderwater explorationSea animal attack
🎮 Games
(1.5K)
free with in-app purchases
11
Scuba Diving Deep Sea Swimming
Scuba Diving Deep Sea Swimming
Scuba Diving Deep Sea Swimming
Underwater nature exploration
Free

Explore the underwater world, swim through vibrant oceans, and discover hidden treasures. This simulator offers a realistic diving experience without leaving your home, perfect for those who dream of the deep sea.

Underwater nature explorationTreasure huntingRealistic water physics
🎮 Games
(17)
free
12
Underwater Stealth Spy Game
Underwater Stealth Spy Game
Underwater Stealth Spy Game
Scuba diving secret mission
Free

Embark on a thrilling underwater mission as a spy infiltrating an enemy laboratory. Utilize a harpoon gun to neutralize sharks and guards, steal sensitive files, and plant explosives to destroy the facility. Experience intense action and the rush of deep-sea espionage.

Underwater spy missionsHarpoon gun combatNeutralize sharks and guards
🎮 Games
(30)
ad-supported
13
Wonderland : My Little Mermaid
Wonderland : My Little Mermaid
Wonderland : My Little Mermaid
Sea World Princess Fairy games
Free

Dive into a magical underwater world and create your own mermaid adventures. Explore sea kingdom locations, dress up mermaids, find hidden treasures, and enjoy role-playing fun with friends.

Explore 14 sea kingdom locationsDress up mermaids and create new looksDiscover pirate's hidden treasure chests
📚 Education
(3.5K)
free with in-app purchases
14
Sea Monster Simulator 2018
Sea Monster Simulator 2018
Sea Monster Simulator 2018
Hungry Shark Underwater Attack
Free

Assume the role of a giant sea monster and explore the deep ocean. Devour everything in your path, from boats and divers to other sea creatures, to survive and advance through challenging missions. Experience a thrilling underwater adventure with realistic graphics and animations.

Realistic underwater experienceVariety of missions with increasing difficultyDifferent sea dragon skins
🎮 Games
(33)
ad-supported
15
Treasure Diving: Lost Atlantis
Treasure Diving: Lost Atlantis
Treasure Diving: Lost Atlantis
Explore a World of Adventure
Free

Embark on an underwater adventure to explore ancient ruins, sunken ships, and mythical artifacts. Complete quests, discover exotic marine life, and build your own underwater base. Unravel mysteries and collect treasures in a vibrant, adventurous world.

Hundreds of expeditions and questsDiscover unique treasures and artifactsExplore exotic marine life and pets
🎮 Games
(624)
free with in-app purchases
16
Octopus Feast
Octopus Feast
Octopus Feast
Octopus: Ocean Growth Game!
Free

Embark on a marine adventure to grow your octopus from a small creature to a colossal predator. Devour fish to enhance abilities, explore vibrant underwater worlds, and evolve into the ultimate sea creature. Compete with friends and dominate the ocean.

Grow octopus from small to colossalDevour fish to get biggerExplore vibrant underwater worlds
🎮 Games
(6.8K)
free with in-app purchases
17
DREDGE
DREDGE
DREDGE
A Sinister Fishing Adventure
Free
$9.99 | 100% OFF

Explore remote islands and their depths as a fishing trawler captain. Sell your catch, complete quests to uncover local secrets, and upgrade your boat. Beware of the dangers lurking in the dark.

Explore remote islands and depthsCatch and sell diverse sea lifeComplete quests to uncover secrets
🎮 Games
(801)
free with in-app purchases
18
Splash — Fish Aquarium
Splash — Fish Aquarium
Splash — Fish Aquarium
Ocean wonders await!
Free

Care for a vibrant ocean reef and collect hundreds of sea creatures. Discover new species, learn facts about marine life, and decorate your sanctuary. Participate in special events and connect with friends to build thriving underwater worlds.

Collect and care for sea creaturesLearn marine life factsDecorate your reef
🎮 Games
(6.2K)
free with in-app purchases
19
Shoal of fish
Shoal of fish
Shoal of fish
Take control like a predator!
Free

Become a predator in a vibrant underwater world. Hunt for smaller fish to grow and survive, while avoiding larger predators. Experience a relaxing yet engaging fishing adventure.

Hunt for fishSwim in a shoalControl a predator
🎮 Games
(18K)
ad-supported
20
Submarine Jump!
Submarine Jump!
Submarine Jump!
Speed Up, Flip & Reach Space
Free

Control a submarine to perform flips and gain speed for epic jumps out of the water. Collect coins to upgrade your vessel, explore underwater areas, and aim for the vastness of space in this addictive adventure.

Tap to rotate submarinePerform flips for speedCollect coins for upgrades
🎮 Games
(41K)
free with in-app purchases