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