Complete each achievement to get the allotted gamerscore. The numbers between the () is the points given for each achievement.
| Achievement | How to unlock |
|---|
| Capital Punishment (100) | Completed the game on the hard game difficulty setting, any ending. |
| Good Behavior (50) | Completed the game on any difficulty without killing any monsters. |
| Silent Hill Tour Guide (100) | Completed all side quests. |
| Useless Trinkets (5) | Completed the "Digging up the Past" side quest. |
| Birdman (5) | Completed the "Bird Cage" side quest. |
| Calling All Cars (5) | Completed the "All Points Bulletin" side quest. |
| Neighborhood Watch (5) | Completed the "Stolen Goods" side quest. |
| Art Appreciation (5) | Completed "The Art Collector" side quest. |
| Silent Alarm (5) | Completed "The Bank" side quest. |
| Will Work For Food (5) | Completed the "Homeless" side quest. |
| Cutting Room Floor (5) | Completed the "Cinéma Vérité" side quest. |
| Turn Back Time (5) | Completed "The Gramophone" side quest. |
| What's Your Sign? (5) | Completed the "Shadow Play" side quest. |
| Telltale Heart (5) | Completed the "Dead Man's Hand" side quest. |
| Dust to Dust (5) | Completed the "Ashes to Ashes" side quest. |
| Long Walk, Short Pier (5) | Completed the "Ribbons" side quest. |
| Spot the Difference (5) | Completed the "Mirror, Mirror" side quest. |
| Silence is Golden (20) | Killed or incapacitated 10 Screamers. |
| Shadow Boxer (20) | Killed or incapacitated 10 Dolls. |
| Piñata Party (20) | Killed or incapacitated 10 Weeping Bats. |
| Lockdown (20) | Killed or incapacitated 10 Prisoner Minions. |
| The Bigger They Are... (20) | Killed or incapacitated 10 Prisoner Juggernauts. |
| Fight or Flight? (20) | Escaped from 20 monsters. |
| Silent Hill Historic Society (50) | Completed Murphy's Journal with all Mysteries. |
| Stay of Execution (25) | Incapacitated 20 monsters without killing them. |
| Gun Control (25) | Killed 25 monsters with the Pistol or Shotgun. |
| Hypochrondriac (10) | Used 20 First Aid Kits. |
| Puzzle Master (100) | Completed the game on the hard puzzle difficulty setting, any ending. |
| Secret Achievements | - |
| Now You're Cooking... (10) | Survived the Diner Otherworld. |
| Out of the Frying Pan (10) | Rode the Sky Tram to Devil's Pit. |
| Going off the Rails (10) | Escaped from Devil's Pit. |
| Found a Friend! (10) | Met DJ Ricks in the Radio Station. |
| Whatever Doesn't Kill You... (10) | Escaped the Radio Station Otherworld. |
| Ashes, Ashes (10) | Collected 3 pages of the rhyme book. |
| Broken Cycle (10) | Defeated The Bogeyman. |
| No Turning Back (10) | Reached Overlook Penitentiary. |
| Ending A (50) | Achieved "Forgiveness" ending. |
| Ending B (50) | Achieved "Truth & Justice" ending. |
| Ending C (50) | Achieved "Full Circle" ending. |
| Ending D (50) | Achieved "Execution" ending. |
| Ending E (70) | Achieved "Surprise!" ending. |
