Orange Box demo on Xbox LIVE today

Try out a section of action from Half-Life 2: Episode Two.

Valve has announced that a playable demo of Orange Box will be available to download from Xbox LIVE Marketplace today.

Released last month for PC and Xbox 360, Orange Box includes full versions of Half-Life 2, Half-Life 2: Episode One, Half-Life 2: Episode Two, Portal and Team Fortress 2.

The demo won't feature a sample of each game, instead offering Xbox 360 gamers a chance to step into the shoes of Gordon Freeman in Episode Two.

The Orange Box will also be released on PlayStation 3, currently planned for December 14.