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