As detailed on Valve’s Game Recording beta page, Steam’s new suite of console-like video features begin with two distinct recording modes.
Valve is expanding Steam’s already teetering tower of built-in features with a new background gameplay recording and sharing system that’s available in beta now.
To explore the new features, Steam users should go into Settings > Interface > Beta Participation then select either Beta option.
Steam’s new Game Recording system – detailed more thoroughly here – is currently available in beta for all users, and developers can access a new SDK and API.
…
Newscast: For Xbox, could this year finally be the one where it all pays off?