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.
Unlock the special ability of helicopter.
Unlock the special ability of phoning for a bomb to be placed.
Score 3 strikes in a row, a turkey, in 10-pin bowling.
Complete mission "Museum Piece".
Unlock all the islands.
Unlock the special ability of buying guns from a friend.
Do a wheelie lasting at least 500 feet on a motorbike.
Complete all 10 package delivery jobs.
Complete mission "Roman's Sorrow".
Complete a taxi ride without skipping from one island to another.
Complete 100% of the unique stunt jumps.
Lose a 4 star wanted rating by outrunning the cops.
Unlock the special ability of taxi.
Successfully date a girl to be invited into her house.
Complete the mission "Uncle Vlad".
Beat a friend at pool.
Complete the first mission.
Complete the final mission.
Complete mission "That Special Someone".
Complete all 10 Exotic Export orders.
Complete all 9 assassin missions.
In a darts game score 180 with 3 darts.
Complete mission "I'll Take Her".
Reach a balance of $500,000.
Achieve 100% in "Game progress" statistic.
Beat the High Score in QUB3D.
Complete the most wanted side missions from the police computer.
Come first in 20 singleplayer street races.
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.
Capture 20 criminals through the police computer.
Deliver all 30 cars ordered through text message.
Meet all random characters.
You must blow up 10 vehicles in 10 seconds.
Complete 10 melee counters in 4 minutes.
Collect every hidden package in the game.
Finish the story. (The Lost and Damned)
Build Terry and Clay's toughness to 100%. (The Lost and Damned)
Become leader of The Lost. (The Lost and Damned)
Help Billy get his bike back. (The Lost and Damned)
In the bike races, whack off 69 bikers with a bat. (The Lost and Damned)
Hit a flag with a golf ball four times. (The Ballad of Gay Tony)
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)
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)