It can't be for nothing

 

Collect all trophies

No Matter What

 

Complete Part 1

Don't Go

 

Complete Left Behind

Look for the Light

 

Find all Firefly pendants

Endure and Survive

 

Collect all comics

Chronicles

 

Find all notes and artifacts

Getting to Know You

 

Engage in all optional conversations

That's all I got

 

Survive all of Ellie's jokes

Something to Fight For

 

Find all training manuals

Combat Ready

 

Fully upgrade a weapon

Master of Unlocking

 

Break into every locked door using shivs

Prepared For the Worst

 

Find all workbenches

Sticky Fingers

 

Open All Safes

Sharpest Tool in the Shed

 

Find all workbench tools

Build Em Up, Break Em Down

 

Upgrade and then break one of every melee weapon

Fallen Firefly

 

Find a Firefly pendant

Self Help

 

Find one training manual

Savage Starlight Fan

 

Find a comic

Geared Up

 

Craft every item

In Memorium

 

Pick up Frank's note after it's discarded

Lights Out

 

While in stealth, turn off the spotlight generator in Pittsburgh.

Waterlogged

 

Ride the sewer contraption with Henry and Sam

Left Hanging

 

Leave Ellie hanging after a job well done

Who's A Good Boy?

 

Pet Buckley the dog

Nobody's Perfect

 

Played the Jak X game in Left Behind

Brick Master

 

Win the brick throwing contest

Angel Knives

 

Defeat Black Fang without getting hit

Skillz

 

Win the water gun fight

Live Bait

 

Use bricks or bottles to lure an infected into attacking a human