Which game was the first to introduce a dedicated in-game marketplace where players could purchase cosmetic items using real currency, establishing the now-common 'cosmetic microtransaction' business model?

The world of gaming has transformed dramatically over the years, particularly in how games monetize through in-game purchases and virtual marketplaces. These digital storefronts have become crucial revenue streams for developers and publishers while reshaping player experiences. Test your knowledge about the history and innovation behind gaming's virtual economies and how they've revolutionized product design in this digital space.

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

Team Fortress 2 (Valve, 2007) with the Mann Co. Store
World of Warcraft (Blizzard, 2004) with the Pet Store
League of Legends (Riot Games, 2009) with the Riot Store
Counter-Strike: Global Offensive (Valve, 2012) with the Arms Deal Update