Which product design innovation has most significantly changed the economic model of video games in the last decade?

Test your knowledge about the evolution of product design in the gaming industry! The way games are designed has changed dramatically over the decades, influencing player experiences and industry trends. This question focuses on a significant product design shift that transformed how games are developed and monetized in the modern era.

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Games-as-a-Service (GaaS) with continuous content updates
Cross-platform play between different gaming systems
Virtual reality integration in mainstream titles
Motion control as a primary input method