Which game company pioneered the first widely successful virtual currency that could be purchased with real money and traded between players, establishing a revolutionary loyalty model in 2003?

The gaming industry has revolutionized digital economies through virtual currencies and marketplaces. From simple coin collections in early platformers to complex cryptocurrency-backed virtual worlds, the evolution of in-game economies has transformed how players interact with games and each other. Test your knowledge about one of the most innovative loyalty programs in gaming history that changed how players perceive value in virtual worlds.

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Blizzard Entertainment with World of Warcraft Gold
Linden Lab with Second Life's Linden Dollars
Valve Corporation with Steam Wallet
Sony Online Entertainment with EverQuest Platinum