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