Merchant
Merchants are citizens who sell various items in the many cities featured in each game, and beyond.
Assassin's Creed
The role of merchants in Assassin's Creed is simply to provide atmosphere and a handy "escape" option if you dive through them to avoid running into citizens. In the PC version, there are also secondary missions called Merchant Stand Destruction in which you must destroy a set number of market tends before the timer runs out because these merchants sell products that are causing illness to the people buying them. In the Xbox 360 version there is an Achievement for diving through a certain number of them.
Assassin's Creed II
In Assassin's Creed II, the role of merchants is extremely different. Aside from being dive-through-able, you can now purchase various items from them.
- Blacksmiths: You can buy certain pieces of Armor, Weapons and Small Weapons from Blacksmiths. They also sell various ammunition.
- Doctors: Doctors can heal Ezio's wounds for a small fee. Also, they sell Medicine vials and later on, Poison.
- Tailors: Tailors sell pouch upgrades to increase Ezio's carrying capacity. They also allow you to customize Ezio's armor by dyeing it with different colors, but dyeing has no real function.
- Art Merchants: Art Merchants sell both Paintings, which increase Monteriggioni's value, and Treasure Maps, which specify where treasure chests can be found.