As Altair, a medieval hitman with a mysterious past (he’s not a time traveler), you have free reign to explore vast cities and countryside. You will investigate your targets by exploring, eavesdropping and even picking pockets for clues on his whereabouts. When you have three clues (with more to discover) you can then move to the assassination stage, using “social stealth” to blend in with crowds, searching for handholds to scale castle walls, using killer’s intuition to hone in on the target and go for the kill of justice.
After the Xbox 360 demo of Assassin’s Creed at X06 there wasn’t much more news out of Ubisoft’s camp, except that the team is trying to put together a package of downloadable content that Director Raymond could only say is “something ambitious.” She hinted slightly at extended gameplay and possibly even some kind of multiplayer, as the team did create a prototype multiplayer and co-op mode. But, as of now, there is still nothing to announce.
The interesting part of the quote from IGN says that while the PlayStation 3 and 360 versions of Assassin’s Creed are virtually identical, Raymond did say that on the Xbox 360 the team is putting a special emphasis on achievements. The hardware also allows for improved threading, which will improve even further the crowd AI.