Duping (video games)
practice of illegitimately creating duplicates of items or currency in a persistent online game

Duping refers to the practice of using a bug in a video game to illegitimately create duplicates of unique items or currency in a persistent online game, such as an MMOG. Duping can vastly destabilize a virtual economy or even the gameplay itself, depending on the item duplicated and the rate at which duplication occurs. Modern persistent world games include automated detection of duping. Duping is usually considered to be a game cheat.
Effects
The effect of duping on a game's economy depends on whether an item or currency was being duplicated and to what degree the duping took place. Currency dupes cause inflation and conversely item dupes cause the item to lose value.
On 7 November 2003 in the MMORPG RuneScape, an extremely rare item, the Magenta Party hat (now the Purple Party hat) was duped well over 2 million times; the effects are still seen today in the game's economy. While Jagex, the game's owners, did everything they could to ban the duping users, the duped party hats are still circulating. Due to the fact that the discontinued items, party-hats, were no longer available, the purple party-hat being duped caused it to become the cheapest hat. While its price is still high for an item, it is considered "the noob's party-hat".
When currency is duplicated, the increase in the overall amount of money in the virtual economy decreases the value of the currency, which in turn increases item prices in player-to-player transactions.
Begin with the source’s own compact description: “Duping (video games)” is practice of illegitimately creating duplicates of items or currency in a persistent online game. The dossier treats that line as a proposition to test through Duping, video and games, not as a finished interpretation.
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