In a couple of days, more than 35,000 maps have been made by fans for Portal 2, Valve's discovered.

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"Hey, that's cheap as chips!"

Collectively, these maps have been downloaded more than 1.3 million times.

This is as a result of the just-released Portal 2 Perpetual Testing Initiative DLC, which packs a level editor.

To celebrate, Valve's selling Portal 2 for only Ł5.09 for the duration of the weekend (ending Monday). The price of The Elder Scrolls 5: Skyrim has been snipped to Ł23.44 on Steam as well, and Team Fortress 2 Workshop items will also be halved in price.

You can find out more about the Perpetual Testing Initiative and the creations people have made with it, over on the Steam Workshop website.

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Robert Purchese

Robert Purchese

Senior Staff Writer

Bertie is senior staff writer and Eurogamer's Poland-and-dragons correspondent. He's part of the furniture here, a friendly chair, and reports on all kinds of things, the stranger the better.

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