Full list of all 39 Terraria achievements worth 1,290 gamerscore. It takes around 80-100 hours to unlock all of the achievements in the base game on Xbox One.
The base game contains 30 achievements worth 1,000 Gamerscore, and there are 3 DLC packs containing 9 achievements worth 290 Gamerscore.
Every type of slime has been defeated!
The Mechanic would be proud.
Every boss in Terraria has been defeated!
All possible town NPCs are living in your world.
The Twins were no trouble.
Skeletron Prime has been pulverised.
Attained maximum life and mana possible!
Destroyer? Destroyed!
You can only go down from here!
The ancient spirits of light and darkness have been unleashed!
You have triumphed over a goblin invasion!
Destroyed more than 10,000 tiles!
The only way is up!
That's put a feather in your cap!
Are you buff enough to take on a boss?
Now you're dressed to impress!
Traveled more than 26.2 miles on foot!
You have survived a blood moon!
You've braved the Underworld and returned safely!
You have survived your first full night!
Your first town NPC has made themselves at home!
You've completed the Tutorial, now go forth and explore a new world!
You've asked the guide for help!
Allow your world to become Corrupted.
Allow your world to become Hallowed.
Find all the pets!
Craft 300 items at an anvil.
Smelt 10,000 bars of metal.
Collect all the armor sets.
Use every type of crafting station.
Defeat the Empress of Light, responsible for all those flashy lights and glitter.
Obtain the Zenith, the culmination of a journey forged into the ultimate sword.
You were so preoccupied with whether you could, that you didn't stop to think if you should.
Defeat Queen Slime, giving the coup-de-grace to the sovereign of all that jiggles.
Obtain the Terraspark Boots, forged from the finest boots of fire and ice.
Encounter a fairy.
Defeat Deerclops, the chilly one-eyed monstrosity from a foreign land.
Obtain Golden Delight, the highest quality meal made from the highest quality... ingredients.
Delay death from drowning by drinking water. It makes no sense, but you did what you had to do.