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