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.
Skeletron Prime has been pulverised.
Every type of slime has been defeated!
Destroyer? Destroyed!
The Twins were no trouble.
Copper and iron and gold, oh my!
The ancient spirits of light and darkness have been unleashed!
You can only go down from here!
You've completed the Tutorial, now go forth and explore a new world!
You've asked the guide for help!
You have triumphed over a goblin invasion!
The only way is up!
Traveled more than 26.2 miles on foot!
That's put a feather in your cap!
Destroyed more than 10,000 tiles!
You have survived a blood moon!
Now you're dressed to impress!
You have survived your first full night!
Your first town NPC has made themselves at home!
Have all possible town NPCs living in your world.
Defeat every boss in Terraria.
Attain maximum life and mana possible without accessories or buffs.
Allow your world to become Corrupted.
Allow your world to become Hallowed.
Find all the pets!
Activate 5 Buffs at once.
Craft 300 items at an anvil.
Collect all the armor sets.
Place 100 wires.
Use every type of crafting station.
Travel from the Surface to the Underworld and back in one fell swoop.
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.