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
Squash 25 bugs
Buy all the mutators
Complete the game with "No margin for error" or "Curse" mutator
Die after drinking the poison
Finish the level in under 3 minutes
Complete the game with "Fog" or "Broken cartridge" mutator
Complete the game
Complete eight levels
Put the items in all the inventory slots
Kill the Ancient Necromancer
Complete five levels
Kill the Elder Flower
Complete the first level
Start the game with any mutator