Here is the full list of all 11 Fate Hunters achievements.
Play Curse card 100 times
Buy 100 cards from the Merchant
Kill 10 Mimics
Leave a tower with 200 or more gold
Upgrade 10 weapon cards
Go through 100 special rooms
Kill the Junkman
Kill all bosses
Buy all cards in collection
Kill the Master
Play Adventurer card 100 times