Full list of all 115 Terraria achievements. It takes around 200 hours to unlock all of the achievements in the base game on Windows.
The base game contains 88 achievements, and there are 3 DLC packs containing 27 achievements.
Have all possible town NPCs living in your world.
Build a house in a mushroom biome and have Truffle move in.
Kill Doctor Bones.
Obtain the Terrarian.
Command nine summoned minions simultaneously.
Reach the 15th wave of a pumpkin moon, where evil lurks among the autumn harvest.
Do battle against the Twins, the Destroyer, and Skeletron Prime simultaneously and emerge victorious.
Reach the 15th wave of a frost moon, where the festive season quickly degrades into madness.
Defeat every type of slime there is!
Fire a Bee Gun while wearing a full set of Bee Armor.
Defeat every boss in Terraria.
Defeat the Eater of Worlds, a massive worm whom dwells in the corruption.
Defeat Duke Fishron, mutant terror of the sea.
Defeat the Moon Lord.
Defeat the four celestial towers of the moon.
Defeat the Ancient Cultist, fanatical leader of the dungeon coven.
Triumph over a martian invasion, when beings from out of this world come to scramble your brains and probe you in uncomfortable places.
Spend over 1 gold being treated by the nurse.
Defeat Golem, the stone-faced ritualistic idol of the lihzahrd tribe.
Fire a rainbow gun while riding on a unicorn.
Unlock one of the dungeon's large, mysterious chests with a special key.
Obtain a rare treasure from a difficult monster in the dungeon.
Defeat Plantera, the overgrown monstrosity of the jungle's depths.
Obtain a Terra Blade, forged from the finest blades of light and darkness.
Kill a nymph.
Mine chlorophyte, an organic ore found deep among the thickest of flora.
Craft a drax or pickaxe axe using hallowed bars, and the souls of the three mechanical bosses.
Defeat the three nocturnal mechanical menaces: the Twins, the Destroyer, and Skeletron Prime.
Attain maximum health and mana possible without accessories or buffs.
Consume a life fruit, which grows in the thick of subterranean jungle grass.
Obtain a rainbow rod.
Survive a solar eclipse, a day darker than night filled with creatures of horror.
Triumph over a pirate invasion, a group of pillagers from the sea out for your booty... and your life!
Triumph over the frost legion, a festive family of maniacal snowman mobsters.
Mine a powerful ore that has been newly blessed upon your world.
Smash a demon or crimson altar with a powerful, holy hammer.
Unleash the ancient spirits of light and darkness across your world, enabling much stronger foes and showering the world with dazzling treasures (and rainbows!).
Defeat the Wall of Flesh, the master and core of the world who arises after a great, burning sacrifice.
Complete a grand total of 200 quests for the angler.
Craft a molten pickaxe using the hottest of materials.
Stumble into a spider cavern in the underground.
Equip a dye in every possible dye slot.
Steal a key from dungeon's undead denizens, and unlock one of their precious golden chests.
Defeat an enemy by running it over with a minecart.
Obtain a minishark.
Defeat the Brain of Cthuhlu, an enourmous demon brain which haunts the creeping crimson.
Triumph over a goblin invasion, a ragtag regiment of crude, barbaric, pointy-eared warriors and their shadowflame sorcerers.
Survive a long fall with just a sliver of health remaining.
Defeat the Queen Bee, the matriarch of the jungle hives.
Using explosives or your trusty hammer, smash a Shadow Orb or Crimson Heart in the evil parts of your world.
Complete your 50th quest for the angler.
The only way is up!
Obtain a golden fishing rod.
Complete your 25th quest for the angler.
Discover a large bee's hive deep in the jungle.
Complete your 10th quest for the angler.
Kill Tim.
Complete your 1st quest for the angler.
Equip a mount.
Throw a yoyo.
Build or encounter a glowing mushroom field above the surface.
Obtain a boss-summoning item.
Survive the slime rain, where gelatinous organisms fall from the sky in droves.
Become a victim to a nasty underground trap.
You can only go down from here!
Destroy a total of 10,000 tiles.
Defeat Skeletron, the cursed guardian of the dungeon.
Travel a total of 26.2 miles on foot.
Survive a blood moon, a nocturnal event where the rivers run red and monsters swarm aplenty.
Kill the groom.
Build a house suitable enough for your first town NPC, such as the guide, to move into.
Survive your character's first full night.
Spelunk deep enough to reach the molten underworld.
Defeat the Eye of Cthulhu, an ocular menace who only appears at night.
Discover and smash your first heart crystal underground.
Obtain an anvil made from iron or lead.
Equip your first grappling hook.
Defeat King Slime, the lord of all things slimy.
Mine your first nugget of ore with a pickaxe.
Kill pinky.
Breach the impenetrable walls of the jungle temple.
Discover a golden chest underground and take a peek at its contents.
Chop down your first tree.
Obtain your first hammer via crafting or otherwise.
Craft a mana crystal out of fallen stars, and consume it.
Equip a pair of wings.
Equip armor or vanity clothing in all three social slots.
Equip armor in all three armor slots: head, chest, and feet.
Craft your first work bench.
Obtain the Zenith, the culmination of a journey forged into the ultimate sword.
You were so preoccupied with whether or not you could open the chest that you didn't stop to think if you should.
Defeat the Dreadnautilus, murderous mollusk lurking beneath the surface of the sanguine seas.
Trick a gnome into turning into stone!
Repel the strongest forces the Old One's Army can muster.
Defeat the Empress of Light, responsible for all those flashy lights and glitter.
Encounter a fairy.
Defeat Queen Slime, giving the coup-de-grace to the sovereign of all that jiggles.
Fly a kite on a windy day.
Drop a lure in a pool of lava for a pre-fried haul!
What you're celebrating doesn't matter, just throw a party already!
Deliver headpats to the town pet.
Meet with a tenant who's as happy as they possibly can be!
Enter a misty graveyard filled with the surly dead.
Obtain the Terraspark Boots, forged from the finest boots of fire and ice.
Obtain Golden Delight, the highest quality meal made from the highest quality . . . ingredients.
Obtain the Cell Phone. You'll never leave home without it again.
Obtain the Ankh Shield, the finest protection from unpleasant maladies and ailments.
Invoked the wrath of the God of Torches, and survived long enough to earn its blessing.
Defeat Deerclops, the chilly one-eyed monstrosity from a foreign land.
Delay death from drowning by drinking water. It doesn't make much sense, but you did what you had to do.
Some very special seeds can lead to unique and rewarding experiences. Can you find one?
Find all of the Slime Pets and have them move in!
Shimmer an item into another item. What other transmutations can you find?
Completely purify all Corruption, Crimson, and Hallow from your world, until the Dryad is satisfied!
Fly a Kwad Racer into outer space.