The Countdown - a series of three short text adventures intended to foreshadow the plot of the fourth and final instalment of the John DeFoe quadrilogy.
The game was written in Inform 7, so you'll need a Zcode interpreter to play it. I recommend Winfrotz, which can be downloaded from one of these links:
http://www.pcworld.com/downloads/file/fid,22456-order,1-page,1-c,alldownloads/description.html
http://www.download.com/WinFrotz/3000-7504_4-10503213.html
http://www.pcadvisor.co.uk/downloads/index.cfm?categoryID=1460&itemID=22456
Ben 'Yahtzee' Croshaw 2007