Here is the full list of all 48 inFAMOUS Second Son trophies - there are 34 bronze, 11 silver, 2 gold and 1 platinum.
Collect all trophies
Finish the game on Expert difficulty
Finish the story with Evil Karma
Show the world that nobody can protect them
An eye for an eye, a tooth for a tooth
Beat down 10 sign twirlers
Achieve Level 5 Evil Karma
Don't fear the weak
Kill 10 obnoxious Akuran gang members
Take out 10 street musicians
Comet Drop on three coughing enemies
Defeat an enemy using three different power sources
Stay in the air for more than 45 seconds
Defeat 10 enemies by detonating ammo crates
Use a Karmic Streak attack to defeat exactly one enemy
Get them before they get you
Dash through two red air vents without touching the ground and then Comet Drop on an enemy
Disrupt 10 activist rallies
Destroy 5 cars in 5 seconds
Finish off 10 wounded enemies or civilians
Comet Drop over 170 meters
Look out for yourself, no matter the consequences
Finish the story with Good Karma
Expose the corruption of the powerful
Collect all the Blast Shards
Clear the D.U.P. out of the entire city
Everyone deserves a second chance
Stand up for the helpless
Achieve Level 5 Good Karma
Complete all of the District Showdowns in the city
Collect all the Informant Audio Logs
Complete all the Stencil Art
Destroy all of the D.U.P. security cameras
Defeat all the D.U.P. Secret Agents
Destroy all the D.U.P. Hidden Cameras
Rescue 10 escaped conduits from angry mobs
Practice self-control
Hit three weak points with Neon Beam in 6 seconds
Clear the D.U.P. out of half the districts in the city
Destroy half the D.U.P. security cameras
Collect half the Blast Shards
Bust 10 drug dealers
Complete Showdowns in half of the districts
Complete a District Showdown
Clear the D.U.P. completely out of a district
Rescue 10 suspects from suspicion pens
Heal 10 wounded civilians
Risk your freedom to protect those you care about