Full list of all 60 L.A. Noire achievements worth 1,400 gamerscore. It takes around 25-30 hours to unlock all of the achievements in the base game on Xbox 360.
The base game contains 40 achievements worth 1,000 Gamerscore, and there are 4 DLC packs containing 20 achievements worth 400 Gamerscore.
Drive every vehicle in the city.
Reach 100% Game Complete.
Kill at least one bad guy with every gun.
Complete all street crime cases.
Respond to 20 street crime cases.
Rack up $47,000 in penalties during a single story case.
Drive more than 194.7 miles.
Discover all landmark locations around the city.
Find and inspect all gold film reels.
Achieve maximum rank.
Drive 40 different vehicles.
Complete all story cases with a five star rating.
Complete all cases on the Arson desk.
Find and inspect 95% of all clues.
Shoot and kill a total of 100 bad guys.
At Elysian Fields, outwit Leland Monroe when discussing his developments or advertising campaign.
Stop a fleeing suspect with a warning shot as an LAPD Detective.
Complete all cases on the Vice desk.
Bring down a total of 30 bad guys with head shots.
At the Bus Shooting, talk Felix Alvarro into giving up the Marines involved in the Coolridge heist.
Follow Candy Edwards without using cover or incognito, except when starting or picking up the tail.
Complete all cases on the Homicide desk.
Complete a brawl without losing your hat as an LAPD Detective or Investigator.
Use four intuition points in a single interview session, correctly branching each question.
Tail a suspect without being spotted, in a single case.
Chase down and tackle a fleeing suspect on foot as an LAPD Detective.
Disable a suspect vehicle with help from your partner.
At the Bamba Club, get Dick McColl to give up the license plate of Celine Henry's male companion.
Keep the needle above 80mph for more than ten seconds while driving.
Complete a story case with a five star rating.
Complete all cases on the Traffic desk.
Correctly branch every question in every interview in a single story case.
At Ray's Cafe, find the bloodstained knife on your first sweep of the crime scene.
Clear a case finding every clue as an LAPD Detective or Investigator.
Use evidence to prove a lie as an LAPD Detective or Investigator.
Find and solve an inspection puzzle.
Find and inspect a clue as an LAPD Detective or Investigator.
Complete a single street crime case.
Complete all cases on the Patrol desk.
Drive 5 different vehicles.
Complete 'The Naked City'.
Shoot every letter down from the tower at the Broadway Hotel.
Escort Heather Swanson to Arnett's apartment without damaging your vehicle.
Tail Henry Arnett from Hollywood Station to the pawnbroker and travel agent without being spotted.
Find and inspect all of the narcotics in Julia Randall's apartment.
Complete 'A Slip of the Tongue'.
Find and inspect all of the Marquee-printed pink slips.
During the Industrial Street raid, kill a goon by shooting the hanging engine block.
Correctly branch every question in the interview with Jean Archer.
Catch and arrest Cliff Harrison before he is stopped by uniformed backup.
Complete 'Nicholson Electroplating'.
Kill the drivers of two of the MP vehicles in the Hughes Aircraft gun battle before they pull up.
Pursue Vernon Mapes from the burning house to Hughes Aircraft on your first attempt.
Find and inspect all clues inside Okamoto's ransacked apartment.
Find and inspect the prop spinner at the Nicholson blast site.
Complete 'Reefer Madness'.
Complete the puzzle of the US Morgan silver dollars at Parnell's Soup.
Find the flyer at Juan Garcia Cruz's house and proceed straight to the 20th Century Market.
Open both soup cans in Juan Garcia Cruz's stash room.
Enter the Las Palmas stash house via the back door and kill Juan Garcia Cruz.