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.
Rope pull 5 enemies off edges.
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.
Survive 10 explosions in multiplayer.
Revive a teammate in a multiplayer match.
Win a ranked match in every multiplayer mode.
In multiplayer, be the only player on your team that isn't dead or downed.
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.
Find all documents, relics and GPS caches.
Kill and loot 10 flying animals (crows and gulls).
Complete all optional tombs.
Fully mod and completely upgrade all weapons.
Purchase all skills in all categories.
Find 75% of GPS caches.
Incapacitate 25 enemies with dodge counter.
Collect 75% of all relics.
Purchase all skills in one category.
Find 75% of all documents.
Complete the game.
Fully mod and completely upgrade any weapon.
Kill 40 enemies with the shotgun.
Kill and loot 10 small animals (rabbits, chickens, rats).
Find 25% of GPS caches.
Kill FeeFee the crab.
Shoot 10 enemies off zip lines.
Kill 75 enemies with the rifle.
Loot 200 enemies.
Collect 5000 pieces of salvage.
Shoot a bundle of dynamite out of the air.
Force an enemy to drop dynamite that kills two people when exploding.
Kill 25 unaware enemies.
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 50 enemies with the bow.
Complete one challenge.
Complete one optional tomb.
Kill and loot 10 large animals (deer, boar, wolves).