When you've already created a browser-based interactive experience that lets players explore a 3D recreation of various locales spread throughout Middle-earth, how do you up your game? You add multiplayer. At least, that's what Google's decided to do. The company has updated its "A Journey Through Middle-earth" Chrome experiment with the ability for players to challenge each other to a bout of Hobbit-inspired fun.

Google developers designed the game using web technologies such as WebRTC and WebGL.

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