Full list of all 50 Far Cry 3 achievements worth 1,000 gamerscore. It takes around 25-30 hours to unlock all of the achievements on Xbox 360.
Gather a total of 60 relics.
Gather all "Letters of the Lost".
Liberate all outposts.
Gather all the memory cards.
Complete "Payback" Co-op map (Online/Offline).
Kill 4 enemies simultaneously with one explosion (Single Player only).
Freefall more than 100m and live (Single Player only).
Craft a special syringe.
Earn every tattoo by learning all the skills.
Win $1500 playing poker.
Find the lost Hollywood star.
Kill an enemy with the Repair Tool (Single Player only).
Craft 25 syringes.
Attend the final ceremony.
Kill Hoyt.
Complete Riley's interrogation.
Kill an enemy with a takedown from above from a glider, zipline or parachute (Single Player only).
Kill 50 enemies with the flamethrower (Single Player only).
Dive more than 60m (Single Player only).
Use your wingsuit to reach the Southern island.
Kill Vaas.
Survive the encounter with Vaas and escape.
Complete "Rush Hour" Co-op map (Online/Offline).
Complete "Lights Out" Co-op map (Online/Offline).
Rescue Keith from Buck.
Rescue Oliver from the pirates.
Complete the Rakyat initiation.
Rescue Liza from the burning building.
Buy all attachments and paint jobs for one weapon.
Fully distract 25 enemies with rocks (Single Player only).
Activate 9 radio towers.
Kill a target from 70m or more with the bow (Single Player only).
Beat any Trial of the Rakyat score.
Spend $5000 at the shop.
Tag 25 enemies using the camera (Single Player only).
Complete "Overboard" Co-op map (Online/Offline).
Complete "Sidetracked" Co-op map (Online/Offline).
Complete "Ready or Not" Co-op map (Online/Offline).
Hunt and skin a rare animal.
Unlock 50 entries in the Survivor Guide.
Liberate 3 outposts.
Liberate an outpost without triggering an alarm.
Craft 5 upgrades for your equipment.
Earn 5 skill tattoos.
Complete a WANTED Dead quest.
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.
Escape the pirates and survive in the wilderness.