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