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