Which gaming company first introduced a dedicated marketplace for players to purchase virtual items with real money, pioneering the 'microtransaction' business model in mainstream gaming?

The gaming industry has transformed how digital products are sold and marketed within virtual worlds. This poll tests your knowledge about a pivotal moment in gaming retail innovation that changed how players interact with in-game economies and virtual goods. Do you know when and how this retail revolution began in the gaming space?

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Valve Corporation with Steam Marketplace (2012)
Bethesda with Horse Armor DLC for Elder Scrolls IV: Oblivion (2006)
Epic Games with Fortnite V-Bucks system (2017)
Blizzard Entertainment with World of Warcraft's Pet Store (2009)