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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

Embark on a journey to the Underwater Fish kingdom, merge elements to grow items, build a marine camp, and discover new fish species in this merging game of oceanic enchantment. Save the underwater world from evil Sea Villains and restore marine life in "Sea Merge: Fish Aquarium"! Start merging and exploring today!

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
Uboat: Sea War#2

Uboat: Sea War by AnisoftGames

Ultimate Uboat Warfare!
Strong Contender
🎮 Games
4.5(12K ratings)
FreeAdsIn-App Purchases
Uboat: Sea War screenshot 1
Uboat: Sea War screenshot 2
Uboat: Sea War screenshot 3
Uboat: Sea War screenshot 4
Uboat: Sea War screenshot 5
Uboat: Sea War screenshot 6

Command your submarine in intense underwater battles, launching torpedoes and dodging enemy ships while upgrading your U-boat and unlocking powerful new abilities to become the most feared captain beneath the waves. Dive into the depths of naval warfare now!

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

Dive into a captivating underwater world where you can breed sea dinosaurs, engage in battles, and create your own Jurassic realm. Experience the thrill of evolving creatures and managing your aquatic universe. Join the adventure today!

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 the oceanic world as a Mermaid Princess in this engaging underwater adventure game designed for kids. Dive into various sea activities, from submarine rides to dressing up and running a hospital for sea animals. With 10 unique rooms to discover and interactive gameplay, children aged 6-8 will have a blast exploring the depths of the ocean. Embark on your underwater journey today!

🎮 Games
(1.8K)
5
SEA Match Puzzle Game - Underwater World
SEA Match Puzzle Game - Underwater World
SEA Match Puzzle Game - Underwater World
by Teerawat Chotpongsathonkul
Free
🎮 Games
(1)
6
Fish Royale - Underwater Arena
Fish Royale - Underwater Arena
Fish Royale - Underwater Arena
Become the last one to survive
Free

Immerse yourself in the underwater world of Fish Royale and engage in a thrilling battle for survival. Eat other fish to grow larger and outlast your opponents in the beautiful underwater arena. Can you be the last fish standing? Play now to find out.

🎮 Games
(427)
7
You Sunk: submarine & warship
You Sunk: submarine & warship
You Sunk: submarine & warship
Sinking ships in naval warfare
Free

Embark on a secret submarine mission behind enemy lines in a game featuring various weapons, enemy ships, and power-ups. Upgrade your submarine and engage in underwater battles during different times of the day. Defeat your enemies and win the war!

🎮 Games
(6.3K)
8
Survival Underwater Shark Game
Survival Underwater Shark Game
Survival Underwater Shark Game
Real Shark Ocean Survival Game
Free

Immerse yourself in an exhilarating oceanic adventure where you play as a shark hunting for survival. Enjoy stunning visuals, thrilling tasks, and customizable shark skins in a captivating underwater world. Start feasting in the ocean today!

🎮 Games
(7.1K)
9
Dinosaur Submarine for toddler
Dinosaur Submarine for toddler
Dinosaur Submarine for toddler
Ocean adventure games for kids
Free

Embark on an underwater adventure with marine animals and hidden treasures in this educational game for kids! Explore the ocean depths, interact with sea creatures, and learn fascinating facts while piloting submarines. Perfect for preschool children aged 0-5, no third-party ads. Ready to dive in? Visit our website for more information.

📚 Education
(5.6K)
10
Princess Mermaid Simulator 3D
Princess Mermaid Simulator 3D
Princess Mermaid Simulator 3D
Underwater Princess Adventure
Free

Dive into the thrilling underwater world with the new Mermaid Simulator 3D adventure game. Explore the ocean, hunt for food, and experience the life of a mermaid in stunning 3D graphics!

🎮 Games
(1.5K)
11
Scuba Diving Deep Sea Swimming
Scuba Diving Deep Sea Swimming
Scuba Diving Deep Sea Swimming
Underwater nature exploration
Free

Get ready to explore the underwater world with a scuba diving and swimming simulator game, where you can swim in the ocean, discover treasures, and experience the thrill of deep sea diving. Download now and enjoy a realistic and fun experience with stunning 3D graphics, smooth controls, and no time limits.

🎮 Games
(17)
12
Underwater Stealth Spy Game
Underwater Stealth Spy Game
Underwater Stealth Spy Game
Scuba diving secret mission
Free

Embark on a secret underwater mission as a spy, navigating through a sea of hungry sharks and guards to infiltrate an enemy laboratory. Use your harpoon gun and cunning to steal crucial files and plant explosives, all while avoiding the dangers that lurk in the depths.

🎮 Games
(30)
13
Wonderland : My Little Mermaid
Wonderland : My Little Mermaid
Wonderland : My Little Mermaid
Sea World Princess Fairy games
Free

Dive into an enchanting underwater world in Wonderland: My Little Mermaid! Embark on an adventure to explore the Sea World Castle, meet mermaids, and create your own Sea World Story. Discover new characters, activities, and 14 exciting Sea Kingdom locations in this magical game for kids.

📚 Education
(3.3K)
14
Sea Monster Simulator 2018
Sea Monster Simulator 2018
Sea Monster Simulator 2018
Hungry Shark Underwater Attack
Free

Experience the thrill of being a massive sea monster, hunting and devouring everything in your path, from sea creatures to humans, in a 3D underwater simulator. Download this game to survive in the deep ocean, overcome challenges, and unleash your fury as a powerful sea dragon.

🎮 Games
(33)
15
Сокровища подводного мира
Сокровища подводного мира
Сокровища подводного мира
Explore a World of Adventure
Free

Embark on deep sea adventures in a world of sunken treasures, ancient mysteries, and underwater exploration in this immersive game. Discover unique quests, build your underwater base, and collect rare artifacts while connecting with friends for an enriching gaming experience. Ready to dive in and explore the depths?

🎮 Games
(1.6K)
16
Octopus Feast
Octopus Feast
Octopus Feast
Octopus: Ocean Growth Game!
Free

Embark on a thrilling marine adventure by growing your octopus from a small creature to a colossal predator. Dive into the deep seas and experience the excitement of nurturing and evolving your octopus. Start your adventure now!

🎮 Games
(6.8K)
17
DREDGE
DREDGE
DREDGE
A Sinister Fishing Adventure
Free
$9.99 | 100% OFF

DREDGE offers a sinister fishing adventure where you captain a trawler to explore remote islands, uncover their troubled pasts, and dredge the depths for hidden treasures. Upgrade your boat and gear to access deeper waters, but beware the dangers lurking in the fog-cloaked seas. Engage in a mysterious quest and fight the unfathomable as you navigate this captivating, narrative-driven experience.

🎮 Games
(801)
18
Splash — Fish Aquarium
Splash — Fish Aquarium
Splash — Fish Aquarium
Ocean wonders await!
Free

Immerse yourself in the world of underwater wonders as you care for a vibrant ocean reef, nurture a variety of fish species, and explore fascinating marine life in this captivating mobile game. Dive into the aquatic adventure today!

🎮 Games
(6.2K)
19
Shoal of fish
Shoal of fish
Shoal of fish
Take control like a predator!
Free

"Dive into the depths, become a hungry predator shark in a shoal of fish, and catch as many fish as you can. Keep your energy high by feasting on fish and watch out for big hungry sharks. Go fish now! For California residents looking to opt out of CrazyLabs sales of personal information, visit the Privacy Policy: https://crazylabs.com/app."

🎮 Games
(18K)
20
Submarine Jump!
Submarine Jump!
Submarine Jump!
Speed Up, Flip & Reach Space
Free

"Submarine Jump!" is a thrilling game where players control a submarine, speeding through the ocean depths and flipping to avoid obstacles. Test your reflexes and go for high scores now!

🎮 Games
(39K)