Which gaming platform first implemented a successful player-to-player marketplace that allowed users to create, sell, and profit from virtual items with real-world currency conversion?

The intersection of gaming and retail has created entirely new shopping experiences and revenue streams. Virtual marketplaces within games generate billions in revenue annually through cosmetics, power-ups, and virtual real estate. Test your knowledge about how major gaming platforms have revolutionized digital retail strategies and created new economic ecosystems within virtual worlds.

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Second Life (Linden Lab)
World of Warcraft (Blizzard)
The Sims Online (EA/Maxis)
EverQuest (Sony Online Entertainment)