Was Altair real

Answer 1

In short - No.

The order of the Hashashin (assassins) were real, and the methods and technology employed in the game are realistic recreations. The Templar, the cities, and of course the crusades depicted in Assassin's creed were real as well. But the actions and identity of the character Altair were fabricated. Much of the game is a skewed, though partially feasible view of history, don't take it very literally.

Major hint for this is that "Altair" is Arabic for bird, or more specifically eagle, and many allusions are made to Altair being like an Eagle. Such as the starting animations, speeches from Au Mualim and in fact the original working title of the game was "The Eagle and Apple"

but Al-Malik al-Ashraf Salāh al-Dīn Khalil ibn Qalawūn(Arabic: الملك الأشرف صلاح الدين خليل بن قلاوون‎); (b. c. 1262, Cairo - d. 14 December 1293, Kom Turuga) was the eighth Mamluk sultan of Egypt from 1290 until his assassination in December, 1293. He is most famous for conquering the last of the Crusader states in Palestine with the capture of Acre in 1291.

This states that altair may be real!