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Release dates, publisher and developer information for this game listed by platform:

Linux

Distributed by
Valve Corporation
Country
Worldwide flag Worldwide
Release Date
May 24, 2014
Comments
Steam release

Macintosh

Distributed by
Valve Corporation
Country
Worldwide flag Worldwide
Release Date
Sep 14, 2010
Comments
Steam release

Windows

Country
Worldwide flag Worldwide
Release Date
Dec 12, 2008
Comments
exoSyphen Studios download release
Distributed by
Valve Corporation
Country
Worldwide flag Worldwide
Release Date
Sep 14, 2010
Comments
Steam release


Release dates and company information contributed by Sciere (587319)