Full list of all 35 Fallout Shelter achievements worth 1,000 gamerscore. It takes around 80-100 hours to unlock all of the achievements on Xbox One.
Successfully stopped 50 Raider Attacks
Completed 100 objectives
Crafted every Theme
Collected 20 Legendary Weapons
Crafted an Outfit, a Weapon and a Theme
Completed 100 Quests
Completed 60 Quests
Collected all Fragments of 4 Theme Recipes
Built 1 of every room type
Scrapped 500 items
Changed the appearance of 10 Dwellers in the Barbershop
Collected all Fragments of a Theme Recipe
Collected 100 Stimpaks and 100 RadAway on Quests
Completed 30 Quests
Made 25 dialogue choices on Quests
Upgraded 20 Rooms to Level 3
Crafted 10 Outfits
Leveled up a Dweller from level 1 to 50
Killed 500 enemies on Quests
Crafted 10 Weapons
Successfully completed 50 Room Rushes
Leveled up a dweller from Level 1 to 25
Completed 10 Quests
Made 25 Babies
Built 50 rooms
Killed 10 Quest Bosses
Built 25 rooms
Leveled up a dweller from Level 1 to 10
Collected 10,000 Caps
Merged 3 Water Rooms
Collected 1,000 Caps
Merged 3 Food Rooms
Merged 3 Power Rooms
Collect 20 Legendary Outfits
Collect 20 Legendary Dwellers