Complete all the other trophies.

Complete the Caves.

Complete the Forest.

Complete the Catacombs.

Complete the Rifts.

Beat the Game.

Beat the Game with All Rune Orbs.

Kill the Evil Mage.

Kill the Chimera.

Kill the Tower Serpent.

Kill the Rust Fiend.

Kill the Baby Dragon.

Kill the Rock Worm.

Kill the Goblin King.

Kill the Mushroom Golem.

Kill the Vine Lord.

Kill the Wisp Queen.

Kill the Abomination.

Kill the Necromancer.

Kill the Zombie Dragon.

Kill the Behemoth.

Kill the Shadow Knight.

Kill the Brood Demon.