Finish the game on any difficulty

Defeat Shagohod

Create the Ocelot Time Paradox

Use a knife to remove a bullet

Kill a target from 70m or more with the bow (Single Player only).

Gather all "Letters of the Lost".

Craft a special syringe.

Hunt and skin a rare animal.

Attend the final ceremony.

Earn every tattoo by learning all the skills.

Kill an enemy with a takedown from above from a glider, zipline or parachute (Single Player only).

Craft 25 syringes.

Liberate all outposts.