Here is the full list of all 51 Far Cry 3 trophies - there are 38 bronze, 10 silver, 2 gold and 1 platinum.
Obtain all the Trophies.
Attend the final ceremony.
Kill Hoyt.
Gather a total of 60 relics.
Gather all the memory cards.
Liberate all outposts.
Gather all "Letters of the Lost".
Complete "Payback" Co-op map (Online/Offline).
Complete "Rush Hour" Co-op map (Online/Offline).
Complete "Lights Out" Co-op map (Online/Offline).
Complete "Overboard" Co-op map (Online/Offline).
Complete "Sidetracked" Co-op map (Online/Offline).
Complete "Ready or Not" Co-op map (Online/Offline).
Kill an enemy with the Repair Tool (Single Player only).
Find the lost Hollywood star.
Dive more than 60m (Single Player only).
Freefall more than 100m and live (Single Player only).
Craft a special syringe.
Earn every tattoo by learning all the skills.
Fully distract 25 enemies with rocks (Single Player only).
Complete Riley's interrogation.
Kill 50 enemies with the flamethrower (Single Player only).
Kill an enemy with a takedown from above from a glider, zipline or parachute (Single Player only).
Kill a target from 70m or more with the bow (Single Player only).
Use your wingsuit to reach the Southern island.
Kill Vaas.
Survive the encounter with Vaas and escape.
Rescue Keith from Buck.
Rescue Oliver from the pirates.
Activate 9 radio towers.
Beat any Trial of the Rakyat score.
Buy all attachments and paint jobs for one weapon.
Complete the Rakyat initiation.
Win $1500 playing poker.
Complete a Path of the Hunter quest.
Hunt and skin a rare animal.
Craft 25 syringes.
Rescue Liza from the burning building.
Unlock 50 entries in the Survivor Guide.
Spend $5000 at the shop.
Complete a WANTED Dead quest.
Liberate 3 outposts.
Liberate an outpost without triggering an alarm.
Tag 25 enemies using the camera (Single Player only).
Complete a Supply Drop quest.
Earn 5 skill tattoos.
Kill 4 enemies simultaneously with one explosion (Single Player only).
Return to the doctor with the cave mushrooms.
Craft 5 upgrades for your equipment.
Lure and kill a predator.
Escape the pirates and survive in the wilderness.