Here is the full list of all 39 Iron Crypticle trophies - there are 15 bronze, 21 silver, 2 gold and 1 platinum.
Get All Trophies
Defeat The Phantom
Defeat Madame Tentacles
Destroy A Fire Bug
Get Rainbow Power
Defeat 3 Types Of Miniboss
Find The Golden Kitty
Defeat Hexapod
Defeat Boulderface
Complete The Mud Pits
Collect All BONUS Letters
Defeat A Boss In All Its Incarnations
Collect 1000 Points Worth Of Coins
Collect 30 Lemons In A Single Game
Get 100 100x8s In A Single Game
Complete 10 Waves In Endless Mode
Use 10 Different Weapon Types
Complete An Infestation Room
Collect Or Buy 5 Stat Increases In A Single Game
Buy 10 Items In A Shop
Use The Atomic Fist 20 Times
Clear 50 Rooms Of Monsters
Defeat The Giant Peepwort
Collect 1000 Food Items (Increasing Score Type)
Use 5 Different Scroll Types
Complete Castle Crushers 3 Times
Pick Up 10 Hearts In A Single-Player Game Session
Finish A Regular Room Without Using A Weapon Pickup
Defeat A Boss Without Using A Weapon Pickup
Defeat 1000 Monsters
Get The Golden Poop
Complete The Graveyard
Find A Map
View 20 Item Descriptions In The Ledger
Defeat A Boss Without Taking Any Damage
Complete The First Floor On Hard Difficulty
Defeat Gnasher
Complete The Catacombs
Finish A Non-Boss, Non-Empty Room Without Taking Damage