Full list of all 72 Fallout 76 achievements. It takes around 200 hours to unlock all of the achievements in the base game on Windows.
The base game contains 50 achievements, and there are 5 DLC packs containing 22 achievements.
Kill 20 Players
Revive 20 Fallen Players
Join 20 Teams
Hack 50 Terminals
Reach Level 100
Read 20 Magazines
Win the "Monster Mash" Event
Kill a Wanted Player
Kill Another Player
Be at Ground Zero of a Nuclear Blast
Collect 10 Bobbleheads
Build 100 C.A.M.P. Items
Take 20 Photos
Reach Level 50
Possess 10,000 Caps
Complete "Heart of the Enemy"
Complete "Queen of the Hunt"
Complete "I Am Become Death"
Win the "Scorched Earth' Event
Mod 50 Weapons
Complete "Officer on Deck"
Win the "Breach and Clear" Event
Complete "One of Us"
Complete "Bunker Buster"
Kill 5 Giant Creatures
Complete "Recruitment Blues"
Complete "Coming to Fruition"
Complete "Mistress of Mystery"
Complete "Key to the Past"
Reach Level 25
Pick 50 Locks
Complete 20 Challenges
Discover 100 Locations
Collect a Bobblehead
Complete "Personal Matters"
Fully Rank Up one Perk
Complete "Into the Fire"
Build 20 C.A.M.P. Items
Build a C.A.M.P.
Kill 300 Creatures
Reach Level 10
Craft 5 Pieces of Armor
Complete 5 Challenges
Complete "Final Departure"
Complete "Second Helpings"
Complete "First Contact"
Play a Holotape Game
Craft a Weapon
Gather 200 Pieces of Junk
Leave Vault 76
Complete "All That Glitters"
Become allies with Foundation
Become allies with Crater
Gain 1500 gold bullion
Complete Sofia's story
Complete Beckett's story
Gain 300 gold bullion
Complete "Buried Treasure"
Complete "The Elusive Crane"
Find the Overseer
Craft a 1 star legendary mod, a 2 star legendary mod, and a 3 star legendary mod
Earn Elder Rewards from a Daily Op
Complete “The Catalyst”
Complete 10 Favors for people in The Whitespring Refuge
Kill 100 Trogs with an Auto Axe
Lead and complete "Union Dues" and "From Ashes to Fire"
Lead and complete “Tax Evasion” and “The Most Sensational Game”
Kill 10 Lesser Devils with a melee weapon
Build 5 casino games in your CAMP
Lead and Complete "The Human Condition"
Complete "Sins of the Father"
Kill 100 Overgrown with fire