Which gaming platform was the first to implement a neural network-based recommendation system that analyzed gameplay patterns rather than just purchase history?

The gaming industry has been at the forefront of implementing advanced machine learning systems to enhance player experiences. From procedurally generated worlds to dynamic difficulty adjustment, ML algorithms have transformed how games understand and adapt to players. This trivia question tests your knowledge about a groundbreaking retail machine learning innovation that changed how major gaming platforms recommend new titles to their users.

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Steam's Discovery Update (2014)
PlayStation Store's 'Recommended for You' (2016)
Xbox Game Pass's Smart Delivery (2017)
Epic Games Store's Discovery Queue (2019)