Traveling Merchant

The Traveling Merchant is a unique NPC vendor who randomly visits the player's Town for a day. His inventory is randomized and different every visit, selling 4 to 11 of the items listed below.

The Traveling Merchant can only spawn once you have at least 2 other Town NPCs, and only on days when no Events are occurring. He is the only NPC that does not require a house in order to spawn. He will generally spawn near existing NPCs and spend most of the day walking near them.

Once the criteria are met, the Traveling Merchant has a 22% chance (roughly 1 in 5) of spawning each day, appearing at a random time between 4:30 AM and 12 PM. He generally stays for only one day at a time, after which he leaves at 6:00 PM. He despawns if the world is vacated before that time.

Items sold
(Note that these chances are per each slot, so the actual chances are multiplied by 4 to 11)

Quotes

 * "Combination hookah and coffee maker! Also makes julienne fries!"
 * "Meet me behind [Name of Guide]'s house in about three hours, I think I have something you will find very appealing."
 * "A thrift shop? No, I am only selling the highest quality items on the market."
 * "I don't refund for "buyer's remorse..." Or for any other reason, really."
 * "I only sell what I can get. [Name of Clothier] keeps hounding me for exotic clothing." (Only if Clothier is present)
 * "If you're looking for junk, you've come to the wrong place."
 * "I sell wares from places that might not even exist!"
 * "That [Name of Merchant], he really has no appreciation for a really good deal." (Only if Merchant is present)
 * "Hmm, you look like you could use an Angel Statue! They slice, and dice, and make everything nice!"
 * "Come and have a look! One pound fish! Very very good! One pound fish!" (Possibly a reference to the song One Pound Fish.)
 * "Buy now, and get free shipping!"
 * "You want two penny farthings!? Make it one and we have a deal."

Names
The travelling merchant may have any of the following names:

Trivia

 * The British spelling, "Travelling Merchant", is used in-game, whereas other spellings in Terraria seem to follow American form.
 * Many of the things he sells are of Asian origin, many from the Qin Dynasty.
 * The name Willy is most likely a reference to the play, "The Death of a Salesman", by Arthur Miller, where the main character is named Willy Loman and is a travelling salesman.

Quotes

 * "Combination hookah and coffee maker. Also makes julienne fries!" is taken from Disney's Aladdin.
 * One of his quotes is a reference to a man who yells "One pound fish!" to sell fish, popularized by the song "One Pound Fish".
 * He returns to the running gag of the Angel Statue having some supposed function.
 * Contrary to one of his quotes, he will not sell anything different if met behind the Guide's House after three in-game hours (3 real-time minutes).

History
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