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