Here is the full list of all 44 Torchlight II trophies - there are 34 bronze, 6 silver, 3 gold and 1 platinum.
Begin a new game plus
Defeat the Nether King in hardcore mode
Defeat Verona
Defeat Aleera
Defeat Marishka
Assemble TrillBot
Defeat Cacklespit
Defeat One-Eyed Willy
Do 10,000 damage with a single attack
Use a map
Defeat the Nether King
Defeat the Dark Alchemist
Defeat Killbot
Defeat Vyrax
Defeat Thiss
Defeat Bloatfang
Defeat the Grizzled Alpha
Defeat the Wraith Lord
Defeat Boletus Rex
Defeat the Siege Guardian
Defeat Ezrek Khan
Defeat Aruk
Defeat the King in Masks
Defeat the Artificer
Defeat the Manticore's Mate
Defeat the Manticore
Fish using dynamite
Have 1,000,000 gold
Reach level 100
Defeat Chillhoof
Defeat Grand Regent Eldrayn
Defeat Kidrik the Mauler
Die with a hardcore character
Start a hardcore character
Defeat King Pogg
Defeat the Winter Widow
Defeat Mordrox
Defeat General Grell
Find a secret room
Defeat the Fallen Guardian
Send your pet to town
Obtain All The Trophies
Wear a completed armor set
Find a legendary item