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.
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).
Find the lost Hollywood star.
Attend the final ceremony.
Kill Hoyt.
Gather all the memory cards.
Liberate all outposts.
Gather all "Letters of the Lost".
Complete Riley's interrogation.
Earn every tattoo by learning all the skills.
Fully distract 25 enemies with rocks (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.
Dive more than 60m (Single Player only).
Gather a total of 60 relics.
Activate 9 radio towers.
Kill 50 enemies with the flamethrower (Single Player only).
Buy all attachments and paint jobs for one weapon.
Craft a special syringe.
Complete the Rakyat initiation.
Win $1500 playing poker.
Tag 25 enemies using the camera (Single Player only).
Kill 4 enemies simultaneously with one explosion (Single Player only).
Kill an enemy with a takedown from above from a glider, zipline or parachute (Single Player only).
Hunt and skin a rare animal.
Liberate 3 outposts.
Kill a target from 70m or more with the bow (Single Player only).
Rescue Liza from the burning building.
Kill an enemy with the Repair Tool (Single Player only).
Freefall more than 100m and live (Single Player only).
Craft 25 syringes.
Beat any Trial of the Rakyat score.
Spend $5000 at the shop.
Unlock 50 entries in the Survivor Guide.
Liberate an outpost without triggering an alarm.
Earn 5 skill tattoos.
Return to the doctor with the cave mushrooms.
Complete a Supply Drop quest.
Lure and kill a predator.
Complete a Path of the Hunter quest.
Craft 5 upgrades for your equipment.
Complete a WANTED Dead quest.
Escape the pirates and survive in the wilderness.