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