Fallout 3 has 73 trophies - 41 bronze, 24 silver, 7 gold and 1 platinum.The base game contains 51 trophies, and there are 5 DLC packs containing 22 trophies.
All trophies
Trophies they've won
Trophies they've not won
Collect all other 50 Trophies for this Trophy
Killed 300 people
Completed "Take it Back!"
Completed "Blood Ties"
Collected 20 Vault-Tec Bobbleheads
Hacked 50 terminals
Completed "The Nuka-Cola Challenge"
Kill all the Super Mutant Behemoths
Discovered 100 locations
Completed "Reilly's Rangers"
Reached Level 20 with Good Karma
Reached Level 20 with Bad Karma
Reached Level 20 with Neutral Karma
Collected 10 Vault-Tec Bobbleheads
Made one of every custom weapon
Completed "You Gotta Shoot 'Em in the Head"
Completed "Agatha's Song"
Completed "Tenpenny Tower"
Completed "Stealing Independence"
Completed "Trouble on the Homefront"
Completed "Oasis"
Completed "Head of State"
Completed "Strictly Business"
Completed "The Superhuman Gambit"
Killed 300 creatures
Completed "Rescue from Paradise"
Completed "The Replicated Man"
Picked 50 locks
Reached Level 14 with Good Karma
Reached Level 14 with Bad Karma
Reached Level 14 with Neutral Karma
Completed "The American Dream"
Completed "Finding the Garden of Eden"
Completed "Picking up the Trail"
Won 50 Speech Challenges
Completed "Those!"
Completed "The Waters of Life"
Completed "Tranquility Lane"
Completed "Scientific Pursuits"
Reached Level 8 with Good Karma
Reached Level 8 with Neutral Karma
Completed "Galaxy News Radio"
Reached Level 8 with Bad Karma
Placed a grenade or mine while pickpocketing
Completed "Big Trouble to Big Town"
Completed "The Wasteland Survival Guide"
Completed "Following in His Footsteps"
Completed "The Power of the Atom"
Completed "Escape!"
Took the G.O.A.T.
Got the Pip-Boy 3000
Completed "Death from Above"
Completed "Shock Value"
Completed "Who Dares Wins"
Reached Level 30 with Bad Karma
Reached Level 30 with Neutral Karma
Reached Level 30 with Good Karma
Completed "Not of This World"
Completed "Among the Stars"
Completed "This Galaxy Ain't Big Enough…"
Collected all Alien Captive Recordings
Completed "Aiding the Outcasts"
Completed "The Guns of Anchorage"
Completed "Paving the Way"
Completed "Operation: Anchorage!"
Completed "The Local Flavor"
Completed "Walking With Spirits"
Completed "A Meeting of the Minds"
Discovered all locations within Point Lookout
Completed "Into The Pitt"
Completed "Unsafe Working Conditions"
Completed "Free Labor"
Found All 100 Steel Ingots