Here is the full list of all 16 One More Dungeon trophies - there are 2 bronze, 3 silver, 10 gold and 1 platinum.
Collect all the trophies
Spend 50 coins
Die after drinking the poison
Complete the game with "Fog" or "Broken cartridge" mutator
Complete the game with "No margin for error" or "Curse" mutator
Complete the game
Buy all the mutators
Complete eight levels
Put the items in all the inventory slots
Squash 25 bugs
Kill the Ancient Necromancer
Complete five levels
Finish the level in under 3 minutes
Kill the Elder Flower
Start the game with any mutator
Complete the first level