Here is the full list of all 50 Tomb Raider achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Complete all conversations with the Endurance crew.
Complete the game.
Find all documents, relics and GPS caches.
Purchase all skills in all categories.
Complete all challenges.
Fully mod and completely upgrade all weapons.
Shoot 10 enemies off zip lines.
Find 75% of GPS caches.
Incapacitate 25 enemies with dodge counter.
Complete all optional tombs.
Find 75% of all documents.
Collect 75% of all relics.
Fully mod and completely upgrade any weapon.
Kill 40 enemies with the shotgun.
Kill FeeFee the crab.
Complete a match in all multiplayer modes.
In multiplayer, be the only player on your team that isn't dead or downed.
Revive a teammate in a multiplayer match.
Kill 75 enemies with the rifle.
Loot 200 enemies.
Kill 50 enemies with the bow.
Kill 25 unaware enemies.
Purchase all skills in one category.
Collect 5000 pieces of salvage.
Rope pull 5 enemies off edges.
Force an enemy to drop dynamite that kills two people when exploding.
Shoot a bundle of dynamite out of the air.
Survive 10 explosions in multiplayer.
In multiplayer, escape death 3 times by using the rope ascender.
Purchase a new multiplayer character.
Reach level 10 in multiplayer.
Kill 10 multiplayer enemies using your melee attack.
Catch a player in a snare trap in multiplayer.
Kill 35 enemies with the pistol.
Find 25% of GPS caches.
Perform 50 headshot kills in the single player campaign.
Collect 25% of all relics.
Perform 15 finishers.
Find 25% of all documents.
Complete one optional tomb.
Kill and loot 10 flying animals (crows and gulls).
Kill and loot 10 small animals (rabbits, chickens, rats).
Complete one challenge.
Kill and loot 10 large animals (deer, boar, wolves).
Kill 20 enemy players in multiplayer using a turret.
Kill a zip-lining enemy player in multiplayer.
Win a ranked match in every multiplayer mode.
Kill 2 multiplayer enemies with a single explosive.
Buy every upgrade and character in multiplayer.
Reach level 60 in multiplayer.