Amazon.com‘s (NASDAQ: AMZN) Twitch.tv and Activision Blizzard (NASDAQ: ATVI) are joining forces to make Twitch the destination of choice for more than 20 Blizzard esports tournaments streamed live over the next two years. This collaboration will bring Twitch viewers select streamed events for titles, including Hearthstone, Heroes of the Storm, World of Warcraft, Starcraft 2, and Overwatch. In addition, Twitch Prime members will get free in-game content and deals for several of those titles.