Microsoft buys interactive game streaming startup Beam

Microsoft is bolstering its Xbox arsenal with the purchase of a startup specializing in letting people join in the fun while watching live-streamed game play.

Microsoft did not disclose financial terms of the deal to buy Seattle-based Beam, which puts an interactive spin on the hot trend of video games being spectator sports.

“With Beam, you don’t just watch your favorite streamer play, you play along with them,” Xbox Live partner group program manager Chad Gibson said in a blog post.