Which gaming platform first introduced an algorithm-based recommendation system for its digital storefront that dramatically increased discoverability for indie games?

The gaming industry has been at the forefront of digital retail transformation, creating innovative virtual storefronts and marketplaces that have revolutionized how players purchase and interact with games and virtual goods. This poll tests your knowledge about a significant digital retail milestone in gaming that changed how players discover and purchase games.

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Steam's Discovery Update (2014)
PlayStation Store's 'Recommended for You' feature (2016)
Xbox Game Store's 'Smart Match' system (2015)
Nintendo eShop's 'Discovery Channel' (2017)