Beam wasn’t just another streaming startup. When it launched in January 2016, the Seattle-based upstart looked like the scrappy platform that dared to out-Twitch Twitch. Founded by Matthew Salsamendi and James Boehm, Beam’s goal was to turn game streaming from a passive viewing experience into a fully interactive one. Using its proprietary FTL (Faster Than Light) protocol, Beam offered audiences the chance not just to watch, but to participate. Viewers could vote on in-game choices, influence loadouts, assign challenges, and engage in real time with delays of less than a second.
The idea landed fast. Beam won TechCrunch Disrupt NY’s Startup Battlefield and secured around $420,000 in seed funding. Its breakthrough wasn’t just about sub-second latency, it was about giving viewers real influence over gameplay. Developers were also given SDKs to build deeper integrations, planting the seeds for a new category of participatory entertainment.
Microsoft steps in
By August 2016, Microsoft had taken notice and acquired Beam for an undisclosed amount. It was a clear move to expand Xbox’s footprint into live streaming and social entertainment, aiming to challenge Amazon’s Twitch head-on. The Beam team joined Microsoft’s Xbox division, and integration came quickly. Broadcasting was baked directly into Windows 10 and Xbox One, making it easier than ever for players to stream with minimal setup.
In May 2017, Beam rebranded as Mixer, partly due to global trademark conflicts. But the rebrand wasn’t just legal cleanup, it marked a broader push to scale. Mixer rolled out co-streaming (letting multiple streamers broadcast together), a mobile companion app called Mixer Create, and deeper Xbox integration. Microsoft even gave Mixer its own prominent slot on the Xbox dashboard.
Betting big on star power
In 2019, Microsoft doubled down with a splashy talent play, signing high-profile Twitch stars like Ninja, Shroud, and KingGothalion to exclusive contracts. Ninja’s departure from Twitch, where he had more than 14 million followers, was headline news across the gaming world.
The thinking was simple: bring the biggest names, and the audience will follow. But while hours streamed on Mixer increased, viewership numbers didn’t keep pace. According to Streamlabs and Newzoo, Twitch saw a massive spike in hours watched during COVID-19 lockdowns, while Mixer remained stuck at just 37 million hours in April 2020. Microsoft had bought attention, but not retention.
Why Mixer failed
Mixer had world-class technology. Its FTL protocol was faster and more interactive than anything Twitch or YouTube offered at the time. But better tech wasn’t enough. Without the gravitational pull of scale and community, streamers were hesitant to uproot. Even those who did often returned to Twitch or YouTube, where bigger followings and stronger monetization kept them anchored.
Mixer also faced steep costs. Running sub-second latency across a growing user base required heavy infrastructure investments. Microsoft soon realized that to compete head-on with Twitch’s entrenched dominance would mean pouring in far more resources than Mixer could justify.
Revenue features like Embers and Skills tried to spark monetization, but engagement lagged. The product wasn’t broken, it just wasn’t big enough.
The end of the stream
On June 22, 2020, Microsoft announced Mixer would shut down within a month. To soften the blow, it struck a deal with Facebook Gaming, redirecting Mixer.com there and offering streamers an option to transition. Outstanding viewer credits were converted to Microsoft Store credit, while Mixer staff were reassigned to Teams.
Star streamers were freed from their contracts. Ninja briefly tested YouTube before re-signing with Twitch. Shroud also went back to Twitch. Microsoft itself shifted priorities toward Xbox, xCloud, and Game Pass.
Co-founder Matt Salsamendi, who had already departed, supported the decision publicly, noting that the economics of live video were punishing and Microsoft was right to refocus its resources.
Legacy and lessons
Beam’s vision was ahead of its time. Interactive streaming, low latency, and gamified participation are now embedded across platforms. Twitch has leaned deeper into extensions and real-time interaction. YouTube has doubled down on live and low-latency streaming. Even Microsoft repurposed much of Mixer’s DNA into its more durable bets, Teams in collaboration, and xCloud in cloud gaming.
The lesson is clear: technology alone doesn’t win. Platforms need critical mass, sticky communities, and strong network effects to survive. Mixer had the tech. It didn’t have the gravity.
Beam showed what the future could look like. Microsoft couldn’t scale it—but the industry carried its ideas forward.
