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