CARDUME: Bioluminescent Shoal

Contains ads
Content rating
Everyone
10+
Downloads
Content rating
Everyone
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About this game

CARDUME is a hypnotic dive into the abyss. You don't control a single fish — you control a living crowd of light. Hold the screen and the shoal swims toward your touch; tap quickly and it releases a pulse of light.

🐟 A LIVING SHOAL
Real flocking simulation: dozens of fish that move as one.

🌊 3 MAPS DOWN TO 3,000 M
Open Sea, Volcanic Trench and Sea of Ice — each with its own wildlife and hazards: hunters, anglerfish, jellyfish, hydrothermal vents, stalactites and orcas.

💡 PULSE OF LIGHT
Scare off predators, reveal traps and attract the plankton that makes your shoal grow.

🛒 SHOP, LEADERBOARD AND TUTORIAL
Collect pearls, upgrade your shoal and beat your high score.

▶ CONTINUE WHERE YOU LEFT OFF
Lost the light? Watch an ad and come back from where you were.

No sign-up. Play offline. Relax and descend.
Guide a bioluminescent shoal to the bottom of the world.
Updated on
Aug 31, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

Important fix:

• Reward videos now always grant the prize. Some players watched a whole ad and came back with nothing — longer ads, or when the reward signal arrived out of order.
• If the reward signal is lost anyway, whoever watched still gets it.
• The video button no longer gets stuck after an ad that fails to open.
• Ads load more reliably on weak connections.