GOG is hyping up its massive overhaul/relaunch by making the original Fallout free for the next 48 hours. Available for XP, Vista and Windows 7, the free version includes the game itself, Fallout-themed wallpapers, a 205 page "Fallout bible" and the soundtrack.

Originally released in 1997, Fallout will feel familiar and yet dramatically different to anyone whose history with the series begins with Fallout 3. For a total investment of zero dollars, however, it's hard to do much better.