Those looking forward to Arkane Studios' upcoming first-person action-stealth-RPG hybrid, Dishonored, will be happy to learn that preorders for the game will receive a free copy of Arx Fatalis, Arkane's first title from 2002. The sole caveat? You need to preorder the PC version on Steam to be eligible. Dishonored's Steam page also advertises an "additional discount" on the Quakecon Bundle currently on sale on Steam.
Arx Fatalis is considered by many to be the spiritual successor to Ultima Underworld, featuring very similar gameplay set in a fully 3D environment. It's admittedly a bit strange to pack it in with Dishonored considering the two titles don't share much in common, but it definitely sweetens the pot for PC gamers.