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