Twitch tweeted out a video today introducing a new and exciting feature that will allow you to buy games right on the website. The feature will be made available to all channels where if they are playing a supported game, a Buy Now button will appear beneath their stream. However, only Partners will be eligible to receive 5% of revenue from the sales. Viewers will be able to purchase the game and download it either through the Twitch Launcher or another platform like UPlay. A cool bonus for viewers is they will also receive additional loot from Twitch Crates included in their purchases. This special loot can include exclusive emotes, chat badges, or even Bits.
For Twitch Partners, you will have to opt-in to this new feature. You can do so through your Dashboard -> Partner Settings -> Monetization -> Earn Revenue from Game Sales. Agree to the terms and conditions and you’re all set!
For more info, read the Twitch Blog.