Which game is widely credited as the first to develop an unintentional real-money economy when players began trading virtual items on eBay, leading to profound insights about virtual world product design?

Many modern games feature complex economic systems with their own currencies, marketplaces, and financial dynamics. But the evolution of virtual economies has a fascinating history that reveals how game developers innovated to create the immersive economic experiences we take for granted today. Test your knowledge about a pivotal moment in gaming history that changed how we think about virtual worlds and their economies.

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Ultima Online (1997)
EverQuest (1999)
Second Life (2003)
World of Warcraft (2004)