The The Golems of Amgarrak Add-on for Dragon Age: Origins has 3 trophies - 3 bronze.
Defeated the Harvester ("The Golems of Amgarrak" downloadable content)
Defeated the Harvester on Hard or Nightmare difficulty ("The Golems of Amgarrak" downloadable content)
Gathered all of the research notes in Amgarrak ("The Golems of Amgarrak" downloadable content)