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