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