Which pricing strategy was FIRST widely adopted by major mobile games that revolutionized the industry's revenue model around 2011-2013?

The gaming industry has pioneered innovative pricing strategies that have transformed how digital products are monetized. From traditional one-time purchases to subscription models, free-to-play with microtransactions, and now NFT-based economies, gaming has continually pushed boundaries in digital commerce. Test your knowledge on how major game publishers and platforms have revolutionized pricing strategies in virtual worlds and created billion-dollar revenue streams from digital goods.

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Free-to-play with microtransactions/in-app purchases
Battle Pass seasonal subscription model
NFT-based ownership of in-game assets
Cloud gaming subscription services