Full list of all 41 Silent Hill: Downpour achievements worth 1,000 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox 360.
Achieved "Full Circle" ending.
Achieved "Forgiveness" ending.
Completed the game on any difficulty without killing any monsters.
Achieved "Surprise!" ending.
Killed or incapacitated 10 Prisoner Juggernauts.
Killed 25 monsters with the Pistol or Shotgun.
Completed Murphy's Journal with all Mysteries.
Completed the "Digging up the Past" side quest.
Completed the "Mirror, Mirror" side quest.
Completed all side quests.
Completed the "Ashes to Ashes" side quest.
Completed the "Shadow Play" side quest.
Completed "The Gramophone" side quest.
Completed the "Homeless" side quest.
Completed "The Art Collector" side quest.
Completed the "Ribbons" side quest.
Completed the "Bird Cage" side quest.
Completed the "Dead Man's Hand" side quest.
Killed or incapacitated 10 Weeping Bats.
Completed "The Bank" side quest.
Incapacitated 20 monsters without killing them.
Achieved "Truth & Justice" ending.
Achieved "Execution" ending.
Completed the game on the hard game difficulty setting, any ending.
Completed the game on the hard puzzle difficulty setting, any ending.
Used 20 First Aid Kits.
Killed or incapacitated 10 Prisoner Minions.
Reached Overlook Penitentiary.
Defeated The Bogeyman.
Collected 3 pages of the rhyme book.
Killed or incapacitated 10 Dolls.
Completed the "Cinéma Vérité" side quest.
Escaped from 20 monsters.
Escaped the Radio Station Otherworld.
Met DJ Ricks in the Radio Station.
Killed or incapacitated 10 Screamers.
Completed the "Stolen Goods" side quest.
Completed the "All Points Bulletin" side quest.
Escaped from Devil's Pit.
Rode the Sky Tram to Devil's Pit.
Survived the Diner Otherworld.