Full list of all 84 Fallout 4 achievements. It takes around 80-100 hours to unlock all of the achievements in the base game on Windows.
The base game contains 50 achievements, and there are 6 DLC packs containing 34 achievements.
Complete "The Nuclear Option"
Complete "Ad Victoriam"
Complete "Blind Betrayal"
Complete "Nuclear Family"
Decide the Fate of the Commonwealth
Complete "Rockets' Red Glare"
Complete "Underground Undercover"
Complete "Powering Up"
Complete 50 Misc. Objectives
Reach Level 50
Reach Maximum Happiness in a Large Settlement
Placed A Grenade Or Mine While Pickpocketing
Get a Homerun
Collect 20 Vault-Tec Bobbleheads
Hack 50 Terminals
Kill 5 Giant Creatures
Collect 10 Vault-Tec Bobbleheads
Complete "Mankind-Redefined"
Complete "Institutionalized"
Complete "The Molecular Level"
Craft 100 Items
Join the Railroad
Create 50 Weapon Mods
Reach Maximum Relationship Level with a Companion
Read 20 Magazines
Complete "Hunter/Hunted"
Complete 10 Side Quests
Kill 300 People
Reach Level 25
Complete "Old Guns"
Discover 100 Locations
Recruit 5 Separate Companions
Pick 50 Locks
Complete "Dangerous Minds"
Kill 300 Creatures
Complete "Taking Independence"
Complete "Reunions"
Ally with 3 Settlements
Complete "Unlikely Valentine"
Build 100 Workshop Items
Gather 1000 Resources Used For Crafting
Get a Touchdown
Reach Level 10
Join the Brotherhood of Steel
Complete "Sanctuary"
Join the Minutemen
Reach Level 5
Complete "When Freedom Calls"
Enter The Wasteland
Play a Holotape Game
Complete "Restoring Order"
Complete "Headhunting"
Unlock 10 Robot Mods
Build 10 Robot Mods
Complete "Mechanical Menace"
Have 5 Tamed Creatures in a Settlement
Build One of Every Cage Type
Start a Spectated Arena Fight in a Settlement
Complete the quest "Cleansing the Land"
Collect all issues of "The Islander's Almanac" magazine
Defeat 30 Far Harbor Sea Creatures
Unlock 3 Far Harbor Workshop Locations
Discover 20 Far Harbor Locations
Complete the quest "Close to Home"
Complete the quest "The Way Life Should Be"
Cook One of the New Far Harbor Recipes
Complete the quest "Where You Belong"
Complete the quest "Far From Home"
Become Overseer
Equip Vault 88 suit and Pip-boy on a settler
Unlock all build areas of Vault 88
Produce 100 objects from your builders
Display a weapon on a weapon rack, armor on an armor rack, and power armor in a power armor display
Assign a settler to a pillory
Redeem 100,000 tickets at the Nuka-Cade
Defeat 40 Nuka-World Creatures while under the effect of any Nuka-Mix flavor
Create 20 different flavors of Nuka-Cola
Establish 8 Raider Camps in the Commonwealth
Collect every issue of Scav! Magazine
Complete 12 quests for any Nuka-World Raider Gangs
Complete "Power Play"
Complete "Home Sweet Home"
Complete "The Grand Tour"
Complete "Taken for a Ride"