Full list of all 84 Fallout 4 achievements worth 1,600 gamerscore. It takes around 80-100 hours to unlock all of the achievements in the base game on Xbox One.
The base game contains 50 achievements worth 1,000 Gamerscore, and there are 6 DLC packs containing 34 achievements worth 600 Gamerscore.
Complete "Nuclear Family"
Complete "Rockets' Red Glare"
Complete "Underground Undercover"
Complete "Powering Up"
Complete "The Nuclear Option"
Decide the Fate of the Commonwealth
Complete "Ad Victoriam"
Complete "Blind Betrayal"
Complete "Mankind-Redefined"
Reach Level 50
Complete 50 Misc. Objectives
Collect 20 Vault-Tec Bobbleheads
Kill 5 Giant Creatures
Reach Maximum Happiness in a Large Settlement
Collect 10 Vault-Tec Bobbleheads
Craft 100 Items
Create 50 Weapon Mods
Hack 50 Terminals
Complete "Institutionalized"
Complete "The Molecular Level"
Complete "Hunter/Hunted"
Kill 300 People
Complete 10 Side Quests
Build 100 Workshop Items
Complete "Old Guns"
Placed A Grenade Or Mine While Pickpocketing
Reach Level 25
Complete "Taking Independence"
Kill 300 Creatures
Recruit 5 Separate Companions
Reach Maximum Relationship Level with a Companion
Join the Railroad
Read 20 Magazines
Join the Brotherhood of Steel
Complete "Dangerous Minds"
Complete "Reunions"
Pick 50 Locks
Discover 100 Locations
Gather 1000 Resources Used For Crafting
Complete "Unlikely Valentine"
Ally with 3 Settlements
Get a Homerun
Reach Level 10
Complete "Sanctuary"
Join the Minutemen
Get a Touchdown
Reach Level 5
Complete "When Freedom Calls"
Enter The Wasteland
Play a Holotape Game
Complete "Headhunting"
Complete "Restoring Order"
Unlock 10 Robot Mods
Build 10 Robot Mods
Complete "Mechanical Menace"
Build One of Every Cage Type
Have 5 Tamed Creatures in a Settlement
Start a Spectated Arena Fight in a Settlement
Complete the quest "Close to Home"
Defeat 30 Far Harbor Sea Creatures
Complete the quest "Cleansing the Land"
Complete the quest "The Way Life Should Be"
Unlock 3 Far Harbor Workshop Locations
Collect all issues of "The Islander's Almanac" magazine
Discover 20 Far Harbor Locations
Complete the quest "Where You Belong"
Cook One of the New Far Harbor Recipes
Complete the quest "Far From Home"
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
Equip Vault 88 suit and Pip-Boy on a settler
Unlock all Vault 88 build areas
Become Overseer
Redeem 100,000 tickets at the Nuka-Cade
Create 20 different flavors of Nuka-Cola
Collect every issue of Scav! Magazine
Complete "Power Play"
Establish 8 Raider Camps in the Commonwealth
Complete "Home Sweet Home"
Complete "The Grand Tour"
Defeat 40 Nuka-World Creatures while under the effect of any Nuka-Mix flavor
Complete 12 quests for any Nuka-World Raider Gangs
Complete "Taken for a Ride"