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