Fable Anniversary for PC is available for 50% off from Steam for a limited time. Normally priced at $34.99, the Steam sale knocks that price down to $17.49. Fable Anniversary was released earlier this year, first for Xbox 360, then for PC in the summer.
Fable Anniversary is a complete remake of Lionhead's original Fable game, released in 2004 for Xbox. While it followed the same story and characters, Fable, including The Lost Chapters content, was entirely redone in Unreal Engine 3. This resulted in a major graphical update, including new character models and effects. The Anniversary edition also added new features to the game like SmartGlass support and leaderboards.