Which innovative retail approach did Epic Games Store introduce that significantly disrupted the digital game distribution market?

Epic Games transformed digital game retail with its store launch in 2018. Beyond being just another game marketplace, Epic implemented several groundbreaking retail innovations that disrupted the industry standard 70/30 revenue split model. Test your knowledge about Epic's retail innovation approach that has forced competitors to reconsider their business models and created new opportunities for game developers of all sizes.

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An 88/12 revenue split favoring developers (instead of the industry-standard 70/30 split)
A subscription-based model where players pay monthly for unlimited access to all games
A blockchain-based ownership system allowing players to resell their digital games
An AI-driven recommendation system that personalizes the store for each user