Here is the full list of all 90 Coin Crypt achievements.
Unlock ALL classes
Defeat 3 Swabbie Spirits
Beat Ouguiya
Collect all secrets
Defeat 2 Anubises
Unlock all classes
Get to the bottom of the mountain
Enter the forge
Discover all enemies
Beat the Sorceress
Defeat 3 Angels
Discover all coins
Defeat 2 Prodigies
Find 5 secret chests in crypts
Gain entry to Sea World
Find 3 Cryptcoins
Deal 200 or more damage in a single strike
Gain entry to Sky World
Beat the Archbishop
Donate $500 total to Ouguiya
Donate $500 total to Kaichin
Beat the Lootmaster
Donate $10,000 total to deities
Beat the Tycoon
Get to world 3 in the crypts
Donate $500 total to Loonie
Beat 3 Cardinals
Beat 3 Grandmas
Donate $500 total to Bullion
Beat the Queen
Get the Gods' reward
Discover 30 types of enemies
Donate $500 total to Sacagawea
Attempt 50 runs
Beat 3 Piggy Banks
Beat the Ghost King
Earn $25,000 in one run
Use 10 wishing wells
Find 50 Doubloons
Donate $500 total to Frank
Beat 3 Undeads
Defeat 3 Lost Kids
Discover 80 coins
Get 10 ghost blessings
Give 10 status effects to enemies
Unlock 9 classes
Find 7 Chaos Chips
Find 20 Bramble Pieces
Beat 3 armors
Earn $15,000 in a single run
Get to world 3
Enter the Crypts
Get to world 2 in the crypts
Beat 3 Musicians
Beat the Mega Ectoplasm
Beat 3 Rogues
Beat 3 Ectoplasms
Get to world 2
Clear the first level
Beat the game with 10 classes
Climb the mountain 10 times
Beat all 3 secret bosses and finish a run
Beat the forge 10 times
Find 10 hidden chests
Beat a Corruptor
Beat the Gold Idol
Beat the Shadomega
Beat Bullion
Beat Sacagawea
Beat Kaichin
Beat Loonie
Beat Frank
Beat the game with every class
Beat 3 Old Explorers
Donate $500 total to Rubo
Have your maximum HP exceed 30
Win a run without dealing any damage
Defeat EVERY enemy
Collect EVERY coin
Beat the game with EVERY class
Collect ALL secrets