Altair didn't die in Bloodlines. The details of Altair's death are completely unknown to us, and is never revealed. The only clue given is in Codex Page 30, in which Altair describes his realization that he's soon to pass away, and appears tempted to use the Piece of Eden to elongate his lifespan. Whether or not he did is a mystery.
Indeed he is. Altair isn't only the main character who was involved in the beginning of the storyline, he appears throughout the series. However as you should know, the main character II, Brotherhood, and Revelations is Ezio Auditore da Firenze.
In Assassin's Creed II, Desmond Miles collapses involuntarily after going into Eagle Vision due to prolonged use of the Animus. He has a dream of Altair and Maria (his lover), during this period you can play as Altair. You can have a fight with one of the classic templar knights too with the new combat system which is quite fun. The dream ends when you have to take Leap of Faith into a haystack.
No.
Altair is the dude in Assassins Creed
Altair is 25 in the first Assassins Creed game.
Yes
He is altair
Assassins Creed Bloodlines is 5 weeks after Assassins Creed 1. This is what happened to Altair before he dies. Assassins Creed 2 is a completely different thing. The main story is the same but the story of the main characters, Altair and Ezio, are very different. Assassins Creed Bloodlines does not have the Animus in it as much as Assassins Creed 1 & 2
yes
altair
no. only his robes as an outfit
no
in assassins creed 2 when he meets his uncle
Most people say that Altair died when he jumped into the haystack in assassins creed 2 when Desmond has the memories about him.