Which gaming company first introduced seasonal in-game retail events with limited-time cosmetic items that later became an industry standard practice?

The gaming industry has revolutionized digital retail with in-game marketplaces and virtual storefronts. These platforms have evolved from simple item shops to complex economies with special events, limited-time offers, and exclusive digital merchandise. Test your knowledge about how major gaming platforms have innovated in the virtual retail space and created new standards for digital commerce and player engagement.

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Riot Games (League of Legends) with their seasonal skins in 2010
Valve (Team Fortress 2) with their holiday-themed items in 2011
Blizzard Entertainment (World of Warcraft) with their Lunar Festival items in 2012
Epic Games (Fortnite) with their first seasonal battle pass in 2013