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