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