Earn all the trophies.
Allow your world to become Hallowed.
Collect all the armor sets.
Allow your world to become Corrupted.
Defeat every type of slime there is!
Attain maximum life and mana possible without accessories or buffs.
Smelt 10,000 bars of metal.
Craft 300 items at an anvil.
Defeat every boss in Terraria.
Do battle against the Twins, the Destroyer, and Skeletron Prime simultaneously and emerge victorious.
Shatter Skeletron Prime.
Use every type of crafting station.
Equip a pair of wings.
Find all the pets!
Dismantle the Destroyer.
Trounce the Twins.
Have all possible town NPCs living in your world.
Unleash the ancient spirits of light and darkness across your world.
Launch yourself into space.
Find a floating island.
Triumph over a goblin invasion, the pointy-eared warriors and their shadowflame sorcerers.
Place 100 wires.
An NPC is destined to die in a trial by fire.
Travel a total of 26.2 miles on foot.
Kill the guide, you monster.
Travel from the Surface to the Underworld and back in one fell swoop.
Perform an acrobatic triple jump with the help of accessories.
Reach the deepest of depths.
Spelunk deep enough to reach the molten underworld.
Destroy a total of 10,000 tiles.
Strap on some boots and go for a jog!
Survive a blood moon, where the rivers run red and monsters swarm aplenty.
Activate 5 Buffs at once.
Equip armor or vanity clothing in all three social slots.
Build a suitable house for your first town NPC, such as the guide, to move into.
Survive your character's first full night.
Complete all the help quests from the guide!
Survive a long fall with just a sliver of health remaining.
Get some help from the guide.
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 doesn't make much sense, but you did what you had to do.