Reef Defense

42 achievements

Ultra Rare×15

Very Rare×16

Rare×5

Uncommon×6

About Reef Defense's achievements

Reef Defense has 42 Steam achievements, 8 of them ultra-rare — unlocked by under 5% of players. The rarest is "Crab Feast 10000", earned by just 1.8% of players. Below is the complete achievement list with global rarity and a full achievement difficulty breakdown.

Rarest achievement

1.8%

of players earned "Crab Feast 10000"

🗺️ Community guides & walkthroughs

Community Ratings

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Difficulty—

Easy → Brutal

Enjoyment—

Meh → Loved it

Grindiness—

No grind → Huge grind

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All Reef Defense achievements

42 achievements

Collect cushion spotted sea stars

Collect 10 Cushion sea stars to redeem for 100 gold coins.

Ultra Rare0.0%

Crab Feast 25000

Crush, smash and chomp 25,000 crab and shrimp

Ultra Rare0.0%

Crab Feast 50000

Crush, smash and chomp 50,000 crab and shrimp

Ultra Rare0.0%

Atlantis Tablet Quest

Collect 5 Atlantis Crystals

Ultra Rare0.0%

Jar of Marbles

5 Marbles found in the reef

Ultra Rare0.0%

Hatch the Azure Damsel

Populate the reef to help the Azure Damsel to hatch

Ultra Rare0.0%

Poesidon's Trident

Find 5 amulets in the game

Ultra Rare0.0%

Crab Feast 10000

Crush, smash and chomp 10,000 crab and shrimp

Ultra Rare1.8%

Bop 5 Wartskin Anglers

5 Wartskin Anglers found in the scene

Ultra Rare1.8%

Complete Atlantis

Complete all 8 levels of Atlantis

Ultra Rare1.8%

Cannon Blaster

Blast 5 cannons on Pirate Isle

Ultra Rare1.8%

Hatch the Neon Damsel

Populate the reef to help the Neon Damsel to hatch

Ultra Rare1.8%

Feed the Fish

Feed and grow 5 fish to full size

Ultra Rare3.7%

Hatch the Blue Fin Damsel

Populate the reef to help the Blue Fin Damsel to hatch

Ultra Rare3.7%

Hatch the Fairy Basslet

Populate the reef to help the Fairy Basslet to hatch

Ultra Rare3.7%

Reef Ranger

Name 5 fish in the reef

Very Rare5.6%

Hatch the Three Stripe Damsel

Populate the reef to help the Three Stripe Damsel to hatch

Very Rare5.6%

Collect mosaic sea stars

Collect 10 Mosaic sea stars to redeem for 100 gold coins.

Very Rare7.5%

Complete Volcano Isle

Complete all 8 levels of Volcano Isle

Very Rare7.5%

Tiki Quest

Collect 5 Island Tikis

Very Rare7.5%

Dolphin Attraction

Populate your reef with fish, corals, crabs and sponges to attract dolphins

Very Rare7.5%

Hatch the Longfin Damsel

Populate the reef to help the Longfin Damsel to hatch

Very Rare9.4%

Hatch the Powder Blue Damsel

Populate the reef to help the Powder Blue Damsel to hatch

Very Rare9.4%

Collect blue sea stars

Collect 10 blue sea stars to redeem for 100 gold coins.

Very Rare11.3%

Crab Feast 5000

Crush, smash and chomp 5,000 crab and shrimp

Very Rare11.3%

Complete Pirate Cove

Complete all 8 levels of Pirates Cove

Very Rare13.2%

Buccaneer's booty

Find the cutlass, pirate flag, ship's wheel, old key and treasure map

Very Rare13.2%

Raise the colors

Find the pirate flag and place it on the sunken pirate ship Adventure

Very Rare13.2%

Pirate's plunder

Open the pirate's treasure chest with the old key

Very Rare13.2%

Queen's Jewels

Find 5 jewels stolen from Her Majesty by pirates

Very Rare13.2%

Bop 5 Moray Eels

5 Moray Eels found in the scene

Very Rare15.0%

Coral Collector

Collect 5 corals in game and place them in your reef

Rare16.9%

Ship Collector

Collect all 5 ship's in a bottle to unlock pirate's gold

Rare16.9%

Fish Collector

Collect 5 fish in the game and place them in your reef to unlock the Lagoon Trigger

Rare18.8%

Collect purple sea stars

Collect 10 purple sea stars to redeem for 100 gold coins.

Rare20.7%

Complete Turtle Beach

Complete all 8 levels of Turtle Beach

Rare22.6%

Conch Shell Quest

Collect 2 cowries, 2 periwinkles and a scallop shell

Uncommon30.1%

Sea star collector

Collect 30 sea stars in the game

Uncommon33.9%

Collect golden sea stars

Collect 10 golden sea stars to redeem for 100 gold coins. There are 3 on each level.

Uncommon37.7%

Complete Coconut Isle

Complete all 8 levels of Coconut Island

Uncommon37.7%

Crab Feast 1000

Crush, smash and chomp 1000 crab and shrimp

Uncommon37.7%

Crab Feast 500

Crush, smash and chomp 500 crab and shrimp

Uncommon41.5%