A LONG JOURNEY
More than a hundred stages on winding spirals, snaking lanes and sandy columns. Early stages are gentle; later ones bring more colours, longer chains and a quicker tide. Replay any stage for three stars and a better score.

Puzzle · Out now
Shoot pearls on a sunlit coral reef. Match three, set off combos, clear the way!
Reef Marbles is a calm, colourful marble shooter set on a sunlit coral reef. You look down through clear turquoise water at a winding path of white sand, where a chain of shimmering pearls rolls towards a dark blue hole. In the middle, a giant open clam shoots pearls wherever you slide your finger.
Match three or more pearls of the same colour to pop them; when both sides of a gap match, the chain rolls back and pops again in a combo. Glowing pearls slow the tide, wash the chain back, burst a whole colour or show exactly where your next shots will land. There are no lives and no energy: if the pearls reach the hole, try again at once or take a second chance.
More than a hundred stages grow from gentle spirals to long, quick chains. Every stage is built from a fixed seed and sealed with a SHA-256 fingerprint, so everyone plays the same stage and your phone can verify it. The Daily Reef gives everyone the same reef each day, with three daily missions, a streak to keep and reefs and pearl sets to collect. Colour symbols on the pearls, no forced ads, no purchases.
More than a hundred stages on winding spirals, snaking lanes and sandy columns. Early stages are gentle; later ones bring more colours, longer chains and a quicker tide. Replay any stage for three stars and a better score.
Some pearls glow. Pop them to slow the tide, wash the chain back, burst every pearl of one colour or see exactly where your shots will land. They are earned in play, never sold.
No lives and no energy: play as long as you like. If the pearls reach the blue hole, try again at once, or watch a short video for a second chance that pushes the chain back and calms the tide.
The pearls never speed up behind your back. Every stage is built from a fixed seed, so everyone plays exactly the same stage, and each one was sealed with a SHA-256 fingerprint at launch: in "How is it fair?" your phone rebuilds the stage and checks the seal. The clam only hands you colours that are still on the path.
One reef for everyone each day: gentle on Monday, toughest on Saturday. Clear it to grow your streak, and play it again for a better score.
Large pearls, an aim guide, a small symbol on every pearl for colour-blind players, haptics, sound and music on or off. Plays offline, no Wi-Fi needed, in ten languages.




Yes, Reef Marbles is free and has no in-app purchases. Ads play only when you choose one: a second chance, double XP after a stage, saving a broken streak, swapping a daily mission, or trying a reef or pearl set for 24 hours. No banners, no interstitials, no in-app purchases. Free to play.
They are earned in play, never sold.
One reef for everyone each day: gentle on Monday, toughest on Saturday. Clear it to grow your streak, and play it again for a better score.
Plays offline, no Wi-Fi needed, in ten languages.
You need Android 12 or newer.
English, Türkçe, Deutsch, Español, Français, Português (Brasil), Italiano, Русский, 日本語, 한국어.
Your level, XP, level stars, statistics, daily missions, daily streak, daily level scores, unlocked reef themes and pearl sets, the level in progress and your settings (such as language, sound, reminders and colour symbols) are saved inside the app on your own device. We cannot see it. Uninstalling the game or clearing its data deletes it.
Shoot pearls on a sunlit coral reef. Match three, set off combos, clear the way!
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