Which gaming platform first introduced a player-to-player marketplace where users could design, sell, and profit from virtual items using real currency?

In-game economies and virtual marketplaces have transformed how players interact with games and each other. These digital retail environments generate billions in revenue annually and have pioneered innovative product design and sales strategies. Test your knowledge about this fascinating intersection of gaming, virtual worlds, and retail innovation!

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Second Life (Linden Lab)
Minecraft Marketplace (Mojang)
Roblox Creator Marketplace
Steam Workshop (Valve)