Merge adorable jelly creatures to discover new forms and expand your vibrant jelly world. Complete challenges and events to earn rewards and speed up evolution in this easy-to-learn, addictive game.
2.8(6 ratings)
FreeAdsIn-App Purchases
Best games like D Diary - Save the Ocean
10+ similar games compared and reviewed
4.3 avg rating
10 free games
Updated August 2026
Whether you want more options like D Diary or a completely different take on the same concept, our curated list of 10+ similar apps and games has you covered. Updated for 2026 with the latest ratings and comparisons.
Top Alternatives to D Diary
Jellyfishers by Guillem Gomez Cartes
Strong Contender
🎮 Games
4.8(12 ratings)
FreeAdsIn-App Purchases
Capture and evolve unique creatures resembling jellyfish in diverse locations. Strategically use food to attract them, then engage in mini-games to capture them. Progress through challenges, customize your character, and decorate beaches to aid your mission.
3.6(5 ratings)
FreeAdsIn-App Purchases
Embark on a relaxing journey across the blue ocean, engaging in fishing and deep-sea diving to discover diverse marine life. Customize your diver, play mini-games, and enjoy this idle healing experience offline.
More games like D Diary
4
JellyfishLifeSimulation
Healing game: sound & light
Free
🎮 Games
(0)
5
Slime Evolution : Raise Slimes
by SeHyeon Im
Free
Cultivate a charming slime farm by merging identical slimes to discover new ones. Assign elemental properties like water, fire, or grass to influence their characteristics. Embark on adventures to collect more slimes and treasures, and document your discoveries in a field guide.
Create new slimes by mergingAssign elemental properties (water, fire, grass)Go on adventures for rewards
🎮 Games
(591)
free with in-app purchases6
Crab Island
Collect dancing crabs!
Free
Embark on a relaxing fishing adventure to collect charming dancing crabs. Customize your crabs with over 100 skins and costumes. Upgrade your island, gather resources, and unlock mystical shrines to summon unique creatures.
Collect dancing crabsOver 100 skins and costumesUpgrade your island
🎮 Games
(605)
free with in-app purchases7
Super Starfish
Stunning Space Swimmer
Free
Navigate a cosmic ocean as a space starfish, dodging celestial hazards and collecting exotic plants. Customize your own space aquarium and discover over 30 unique starfish. Compete with friends and share your interstellar discoveries.
Cosmic swimming gameplaySpace aquarium customizationCollect exotic flora
🎮 Games
(29K)
free with in-app purchases8
Dive & Sushi
Dive & Manage Sushi Restaurant
Free
Explore mysterious seas, catch rare fish, and manage a sushi restaurant. Upgrade your gear, battle sea monsters, and serve delicious dishes to earn money and expand your business. A unique blend of adventure and simulation.
Underwater explorationFishing and catching rare fishSushi restaurant management
🎮 Games
(246)
free with in-app purchases9
Drop & Sort Jellyfish
Pop Bubbles & Sort Smart!
Free
Engage in a strategic puzzle adventure where you drop bubbles to match and release colorful jellyfish. Plan your moves carefully to burst bubbles and guide the jellyfish to freedom in increasingly challenging levels.
Drop bubbles to match colorsRelease colorful jellyfishStrategic puzzle gameplay
🎮 Games
(256)
free with in-app purchases10
Flutter: Butterfly Sanctuary
Relaxing Cozy Game
Free
Create a vibrant rainforest sanctuary by collecting and nurturing hundreds of real butterfly species. Watch them grow through their life cycle, learn fascinating facts, and expand your magical forest with beautiful decorations. Enjoy relaxing gameplay with a calming soundtrack and discover new species through missions and events.
Collect 400+ real butterfly speciesNurture butterflies through their life cycleExpand and decorate your forest sanctuary
🎮 Games
(4.6K)
free with in-app purchases