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