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