Portal (game): Difference between revisions

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m (→‎See also: Linking to list of default keys.)
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*Electronic Arts <small>(retail)</small>
*Electronic Arts <small>(retail)</small>
*Steam <small>(online)</small>
*Steam <small>(online)</small>
| engine = [[Source engine]]
| engine = [[Source_Engine|Source Engine]]
| released =  
| released =  
*Microsoft Windows and Xbox 360 <small>(The Orange Box retail)</small>
*Microsoft Windows and Xbox 360 <small>(The Orange Box retail)</small>