Final answer:
The freemium model of gaming includes in-app purchases, ad-supported games, and subscription-based games, but not premium game downloads.
Step-by-step explanation:
The freemium model of gaming includes all of the following activities except premium game downloads: in-app purchases, ad-supported games, and subscription-based games.
In the freemium model, the game itself is free to download and play, but players have the option to make in-app purchases to enhance their gaming experience or progress faster. Ad-supported games generate revenue through advertisements displayed within the game. Subscription-based games require players to pay a recurring fee to access premium features or content. However, premium game downloads refer to games that are paid upfront without any additional purchases or subscriptions required.