New York (CNN Business) Competition between Amazon's livestreaming platform Twitch and Microsoft's Mixer is heating up. Mega Twitch star Shroud announced Thursday he will stream exclusively on Mixer, starting at 8PM ET.

Shroud is the second big Twitch streamer to leave the platform for Mixer, after "Fortnite" star Ninja made the move in August. Michael "Shroud" Grzesiek, 25, often beat out Ninja's Twitch streams over the year in hours watched. He often plays shooter games like "Counter Strike," "Apex Legends" and "PlayerUnknown's Battlegrounds."

Mixer, after making millions of dollars from advertising and donations on Twitch, propelling himself and the platform into stardom. He said he was returning to his "streaming roots," a vague statement many took to mean getting back to a smaller platform where he is the star. In October, his wife, Jessica Blevins, In August, Tyler "Ninja" Blevins said he would stream exclusively on three-year-oldMixer, after making millions of dollars from advertising and donations on Twitch, propelling himself and the platform into stardom. He said he was returning to his "streaming roots," a vague statement many took to mean getting back to a smaller platform where he is the star. In October, his wife, Jessica Blevins, told media that the contract with Mixer allowed Ninja to take on more brand deals.

Shroud wouldn't say whether Ninja's move influenced his decision and whether his Mixer contract had better terms than his deal with Twitch. His team declined to share financials of the deal.

"The move to Mixer allows me to focus on what I love: gaming," Shroud told CNN Business on Thursday, "It allows me to focus on livestreaming for my fans and directly engage with more interactivity and variety."

Read More