1) The classic model of selling console or PC games at retail is being replaced by digital downloads and free-to-play mobile games.
2) Free-to-play games make money through in-app purchases rather than upfront costs, with popular options including cosmetic items, power-ups, and removing restrictions that encourage continued gameplay.
3) Highly successful games like Puzzle and Dragons and Clash of Clans generate millions in daily revenue through engaging core gameplay loops and social features that encourage in-app purchases without negatively impacting the gameplay experience.