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.
Collected all Fragments of 4 Theme Recipes
Completed 60 Quests
Crafted an Outfit, a Weapon and a Theme
Collected all Fragments of a Theme Recipe
Upgraded 20 Rooms to Level 3
Collected 100 Stimpaks and 100 RadAway on Quests
Collected 20 Legendary Weapons
Crafted 10 Weapons
Changed the appearance of 10 Dwellers in the Barbershop
Crafted 10 Outfits
Built 1 of every room type
Completed 30 Quests
Killed 500 enemies on Quests
Leveled up a dweller from Level 1 to 25
Made 25 Babies
Made 25 dialogue choices on Quests
Killed 10 Quest Bosses
Built 50 rooms
Completed 10 Quests
Collected 10,000 Caps
Leveled up a dweller from Level 1 to 10
Successfully completed 50 Room Rushes
Built 25 rooms
Merged 3 Water Rooms
Merged 3 Food Rooms
Merged 3 Power Rooms
Collected 1,000 Caps
Level up a Dweller from Level 1 to 50
Collect 20 Legendary Outfits
Collect 20 Legendary Dwellers
Successfully stop 50 Raider Attacks
Complete 100 objectives
Complete 100 Quests
Craft every Theme
Scrap 500 items