Reef Keeper Merge Aquarium

Dive into Reef Keeper, a relaxing merge game where you build a living aquarium one creature at a time.

Drag matching sea creatures together to merge them into bigger, rarer species — from tiny Plankton all the way up to a majestic Whale. Your reef keeps earning pearls while you play, so it always feels like it's growing.

TWO WAYS TO PLAY

• Zen — no timer, no pressure. Merge, collect, and grow your reef at your own pace as you climb Reef Levels.
• Challenges — beat the clock across eight difficulties, from Novice to Legend. Race to raise the target species before time runs out and unlock the next level.

FEATURES

• Simple one-thumb drag-to-merge gameplay
• Idle income — your reef earns pearls as you play
• Reef Levels with celebration confetti for every new species
• A Reefdex to collect all 12 species
• Upgrades: faster spawns, bigger spawns, pearl bonus
• Cozy animated reef — swaying seaweed, drifting light, rising bubbles
• Relaxing music and satisfying merge sounds

Free to play. Made with Godot.