Seabrook has touted Prospekt as being comparable to Half-Life 2: Episode One in length, so somewhere between two and four hours depending on your playstyle. Series stalwart Gordon Freeman is cornered, so his Vortigaunt allies teleport in US Marine Adrian Shepherd - that's you! - to help out. Propsekt is set in the Nova Prospekt prison introduced in Half-Life 2. In this case £7.50 / $9.99 / €9.99 (though pre-order are 10 per cent off). That's right, Valve has approved Seabrook's expansion to its canon to be sold for monetary value. The fate of the briefcase remains unknown, but the game within - Prospekt, a sequel to the Gearbox-made Half-Life expansion Opposing Force - is now available for pre-order on Steam with an 11th February launch. Last summer Bertie spoke to a young man named Richard Seabrook who sent his game to Valve head honcho Gabe Newell in a nifty briefcase.
