Full list of all 55 Grand Theft Auto IV achievements. It takes around 50-60 hours to unlock all of the achievements in the base game on Windows.
The base game contains 40 achievements, and there are 2 DLC packs containing 15 achievements.
Complete mission "Roman's Sorrow".
In a darts game score 180 with 3 darts.
Complete the mission "Uncle Vlad".
Lose a 4 star wanted rating by outrunning the cops.
Beat a friend at pool.
Complete the first mission.
Complete mission "Museum Piece".
Unlock all the islands.
Complete the final mission.
Achieve 100% in "Game progress" statistic.
Successfully date a girl to be invited into her house.
Score 3 strikes in a row, a turkey, in 10-pin bowling.
Beat the High Score in QUB3D.
Complete a taxi ride without skipping from one island to another.
Complete all 10 Exotic Export orders.
Complete all 10 package delivery jobs.
Complete the most wanted side missions from the police computer.
Complete all 9 assassin missions.
Come first in 20 singleplayer street races.
Do a wheelie lasting at least 500 feet on a motorbike.
Fly underneath the main bridges in the game that cross water with a helicopter.
After meeting all possible friends, the ones left alive all like you above 90%.
Complete the story missions in less than 30 hours.
Do 5 car rolls in a row from one crash.
Fly on all helicopter tours of Liberty City.
Survive 5 minutes on 6 star wanted level.
Complete mission "I'll Take Her".
Complete mission "That Special Someone".
Capture 20 criminals through the police computer.
Deliver all 30 cars ordered through text message.
Meet all random characters.
Unlock the special ability of phoning for a bomb to be placed.
Unlock the special ability of taxi.
Unlock the special ability of helicopter.
Unlock the special ability of buying guns from a friend.
Reach a balance of $500,000.
You must blow up 10 vehicles in 10 seconds.
Complete 10 melee counters in 4 minutes.
Complete 100% of the unique stunt jumps.
Collect every hidden package in the game.
Help Billy get his bike back. (The Lost and Damned)
Become leader of The Lost. (The Lost and Damned)
Finish the story. (The Lost and Damned)
In the bike races, whack off 69 bikers with a bat. (The Lost and Damned)
Build Terry and Clay's toughness to 100%. (The Lost and Damned)
Complete all base jumps. (The Ballad of Gay Tony)
Complete the Trinity. (The Ballad of Gay Tony)
Finish the Ballad. (The Ballad of Gay Tony)
Complete 25 drug wars. (The Ballad of Gay Tony)
Win the L.C. Cage Fighters championship. (The Ballad of Gay Tony)
Hit a flag with a golf ball four times. (The Ballad of Gay Tony)
Score 80% or above in all missions. (The Ballad of Gay Tony)
Freefall for the longest possible time. (The Ballad of Gay Tony)
Dance perfectly in both Tony's nightclubs. (The Ballad of Gay Tony)
Score 100% in all missions. (The Ballad of Gay Tony)