Amazon.com's video-game streaming site Twitch will begin selling games and features in the coming months, as Amazon tries to further expand its commerce services into the large gaming industry.industry.

Twitch streams competitions featuring professional gamers, letting viewers chat alongside the action, react and ask questions. The site now will let its 10 million daily viewers download games and game features such as characters, weapons and tools while they watch their favorite streamers.

Twitch viewers will be inspired to download games and purchase features while watching their favorite players use them.

Twitch currently generates revenue from selling advertising and subscriptions. Subscribers pay $5 a month per channel to interact with their favorite streamers in chat rooms and get access to emoticons.

Amazon, which has its own video game division, sees the platform as a gateway to the market to rival Microsoft and Sony.

In September, Twitch announced some of its video-game streaming services would be included in Amazon's $99-a-year Prime membership, which also includes delivery discounts and video and music streaming.