Which gaming retail innovation was first introduced by Valve Corporation in 2010, revolutionizing how developers could monetize their games post-release?

The gaming industry has transformed retail experiences dramatically over the past decade. From physical game purchases to digital marketplaces, in-game purchases, and virtual economies, gaming retail has pioneered new business models that many other industries now emulate. This trivia tests your knowledge about a significant retail innovation that changed how games are monetized and distributed, creating new revenue streams for developers and publishers.

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Steam Workshop - allowing creators to sell user-generated content and mods
PlayStation Plus - subscription model for monthly free games
Xbox Game Pass - all-you-can-play subscription service
Epic Games Store - revenue-sharing model with developers