There are a total of 66 Grand Theft Auto IV Trophies (including DLC) which include 57 Bronze Trophies, 5 Silver Trophies, 3 Gold Trophies, and 1 Platinum Trophy.
Assassin's Greed (Bronze)You completed all 9 assassin missions
Auf Wiedersehen Petrovic(Bronze)You won in all variations of multiplayer games
Chain Reaction(Bronze)You exploded 10 vehicles in 10 seconds
Cleaned The Mean Streets(Bronze)You caught 20 criminals through the police computer
Courier Service(Bronze)You completed all 10 package delivery jobs
Cut Your Teeth(Bronze)You were successfully promoted up a rank in multiplayer
Finish Him(Bronze)You completed 10 melee counters in 4 minutes
Fly The Co-op (Bronze)You completed 'Deal Breaker', 'Hangman's NOOSE', and 'Bomb Da Base II' n time
Full Exploration(Bronze)You unlocked all the islands
Genetically Superior(Bronze)You came first in 20 singleplayer street races
Gobble Gobble(Bronze)You got a turkey in 10-pin bowling
Half Million(Bronze)You have amassed a fortune of $500,000
It'll Cost Ya(Bronze)You made a taxi trip from one island to another without skipping
Join The Midnight Club(Bronze)You won a multiplayer race without damaging your vehicle too much
King of QUB3D(Bronze)You beat the high score in QUB3D
Let Sleeping Rockstars Lie(Bronze)You killed a Rockstar in multiplayer
Manhunt(Bronze)You completed the most wanted side mission
Off The Boat(Bronze)You have completed the first mission
One Hundred And Eighty(Bronze)You scored 180 with 3 darts
Order Fulfilled(Bronze)You completed all 10 Exotic Export orders
Pool Shark(Bronze)You beat a friend at pool
Rolled Over(Bronze)You managed 5 car rolls in a row from one crash
Sightseer(Bronze)You have taken all variations of the helicopter tours of Liberty City
Taking It For The Team(Bronze)You were on the winning team in all multiplayer team games
Teamplayer(Bronze)You killed 5 opposing team members
Top Of The Food Chain(Bronze)You successfully killed 20 players with a pistol in a deathmatch
Top The Midnight Club(Bronze)You won 20 different multiplayer standard races
Under The Radar(Bronze)You flew under all the main bridges in the game
Walk Free(Bronze)You successfully lost a 4 star wanted rating
Warm Coffee(Bronze)You were invited into your girlfriend's house
Wheelie Rider(Bronze)You completed a 500 foot wheelie on a motorbike
You Got The Message(Bronze)You delivered all 30 cars ordered through text message
Dare Devil(Silver)You completed all the unique stunt jumps
Endangered Species(Silver)You collected every hidden package in the game
Liberty City (5)(Silver)Your friends all like you above 90%
One Man Army(Silver)You survived a 6 star wanted level for a full 5 minutes
Key To The City(Gold)You completed GTA IV to 100%
Liberty City Minute(Gold)You finished the story in less than 30 hours
Wanted(Gold)You achieved the highest personal rank possible in multiplayer
Secret Trophies
Dial B For Bomb(Bronze)You unlocked the special ability of Packie's car bomb placement
Driving Mr. Bellic(Bronze)You unlocked the special ability of Roman's taxi
Fed The Fish(Bronze)You completed the mission 'Uncle Vlad'
Gracefully Taken(Bronze)You completed the mission 'I'll Take Her'
Impossible Trinity(Bronze)You completed the mission 'Museum Piece'
Lowest Point(Bronze)You completed the mission 'Roman's Sorrow'
No More Strangers(Bronze)You've met all the random characters
Retail Therapy(Bronze)You unlocked the special ability of buying guns from Little Jacob
That Special Someone(Bronze)You completed the mission 'That Special Someone'
That's How We Roll!(Bronze)You unlocked the special ability of Brucie's helicopter ride
You Won!(Silver)You have completed the story
Taking A Liberty(Platinum)Sorry for taking liberties with your time
DLC: The Lost and Damned
TLAD: Easy Rider(Bronze)Finish the story. (The Lost and Damned)
TLAD: Full Chat(Bronze)Build Terry and Clay's toughness to 100%. (The Lost and Damned)
TLAD: Get Good Wood(Bronze)In the bike races, whack off 69 bikers with a bat. (The Lost and Damned)
TLAD: One Percenter(Bronze)Help Billy get his bike back. (The Lost and Damned)
TLAD: The Lost Boy(Bronze)Become the leader of The Lost. (The Lost and Damned)
DLC: The Ballad of Gay Tony
TBoGT: Adrenaline-Junkie(Bronze)Freefall for the longest possible time. (The Ballad of Gay Tony)
TBoGT: Bear Fight(Bronze)Win the L.C. Cage Fighters championship. (The Ballad of Gay Tony)
TBoGT: Catch the Bus(Bronze)Dance perfectly in both Tony's nightclubs. (The Ballad of Gay Tony)
TBoGT: Diamonds Forever (Bronze)Complete the Trinity. (The Ballad of Gay Tony)
TBoGT: Four Play(Bronze)Hit a flag with a golf ball four times. (The Ballad of Gay Tony)
TBoGT: Gold Star (Bronze)Score 100% in all missions. (The Ballad of Gay Tony)
TBoGT: Gone Down(Bronze)Complete all base jumps. (The Ballad of Gay Tony)
TBoGT: Maestro(Bronze)Finish the Ballad. (The Ballad of Gay Tony)
TBoGT: Past the Velvet Rope(Bronze)Score 80% or above in all missions. (The Ballad of Gay Tony)
TBoGT: Snow Queen(Bronze)Complete 25 drug wars. (The Ballad of Gay Tony)
