To celebrate breaking the 6,000,000 unique game downloads mark, virtuous virtual vendor of vintage video games Good Old Games is offering a classic for free. Revolution Software's fine adventure game Broken Sword: Shadow of the Templars can briefly be had for $0.00, but be quick as time's short.
If you still mourn the golden days of adventure games, Broken Sword's from towards the end of the era, a few years before the fall, so it should tickle your fancy--especially at that price. GOG's Broken Sword offering includes both the 1996 original edition and 2010's revamped and expanded Director's Cut.
All you need to download it is a GOG account. However, be quick if you fancy it, as the freebie is only on offer until 4:59am Pacific on October 1. After then, it'll go back to $6.99.