Editing Artifact Merchants (section)

== Price of artifacts ==
Every artifact has a so called [[basic cost]], from where the sell price and the buy price is determined. The price depends on how many [[marketplace]]s the player owns. The rule of thumb is, that the more marketplaces, the cheaper are the buy prices and the higher are the sell prices. For example, with four markets, a [[Ring of Life]] with a base cost of 5000 can be bought for 14286 gold, or sold for 1750 gold.

{| class="wikitable" style="float:right;"
|+ Price per number of markets
! Operation !! 1 !! 2 !! 3 !! 4 !! 5 !! 6 !! 7 !! 8 !! 9+
|-
! Buy
| 500% || 400% || 333% || 286% || 250% || 222% || 200 || 181% || 167%
|-
! Sell
| 20% || 25% || 30% || 35% || 40% || 45% || 50% || 55% || 60%
|}
<pre>PRICE (buy) = 5 &times; B / (1 + (M - 1) &times; 0,25)
PRICE (sell) = B &times; (1 + (M - 1) &times; 0,25) / 5

  where   B = basic cost of an artifact
          M = number of marketplaces (max. 9)</pre>
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===Exploit===
If the player owns zero marketplaces, but accesses an artifact merchant through a town owned by an ally, artifacts can be bought at a price of zero gold. This is fixed by the [[Heroes 3 HD|HD mod]] and {{hota}}.