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Master Trader is a perk in Fallout, Fallout 2, Fallout 3, Fallout Tactics and Fallout: The Board Game.

Fallout, Fallout 2, Fallout Tactics

You have mastered one aspect of bartering - the ability to buy goods far cheaper than a normal person. With this Perk, you get a 25% discount when purchasing items from a store or another trader.

In Fallout, this perk adds the equivalent of 25 invisible skill points to the player's Barter skill when determining prices.[1]

In Fallout 2, due to a change in the Barter formula, this perk subtracts 25 points from a barter modifier, which is then multiplied by the original price and the Barter skill modifier.

By default, the modifier starts at 100%, but Reaction modifiers can add 25 points, 0 points, or subtract 15 points at the same time, making the discount appear to vary from 20% (when there is a +25 point "negative reaction" modifier), to 25% (with "neutral reaction" modifier (0 points), up to 40% (with a -15 point "positive reaction" modifier).[1]


The Fallout 2 manual incorrectly states that this perk makes the player character's items more valuable, and that the Barter requirement is 60%.

Fallout 3

With this perk, the price of every item you buy from a vendor is reduced by 25%.


  • Allows for expanded dialogue options when discussing business arrangements outside of the barter system. Especially applicable when speaking with Uncle Roe of Canterbury Commons, see Merchant Empire for details.
  • This perk only affects purchases, one's own sold items' price are not affected by this perk.
  • If the 25% discounted price is below base price, the list price will be the base price.
  • Once this perk and the 60 Barter necessary for it are obtained, most vendors will already be selling their items at the lowest cost (Base Value).

Fallout: The Board Game

It can be discarded to allow the player character to shop at their current location. They can buy and sell an unlimited number of items.