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