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