The PC version of Assassin's Creed features four missions not appearing in the PS3 and Xbox 360 editions.
As such, the PC edition of the game is going under the name Assassin's Creed: Director's Cut. Ubisoft has confirmed it'll release in March.
It's neglected to drop any information bombs regarding the new content, so we'll just have to wait and be surprised.
By now you'll probably now all about the plot, but just in case you don't we'll only say the game's set during the Third Crusade and drops you in the boots of a super-athletic assassin called Altair who is working both sides of the fence to stop the war.
And don't be surprised if Ubisoft releases the new content for consoles down the line. Oh, and you're going to need a damn hefty PC to play it if these spec requirements are on the money...