Which Assassin's Creed title was the first to use the series name in its title?

Assassin's Creed was the first title to use the Assassin's Creed name in its title.

The original game was developed by Ubisoft Montreal and released in 2007. It introduced the franchise's central conflict between the Assassins and Templars, as well as the Animus, a machine that lets modern users experience ancestral memories.

Its historical campaign follows Altaïr Ibn-La'Ahad during the Third Crusade, while its modern storyline follows Desmond Miles. The game established recurring ideas such as social stealth, historical tourism, freerunning, and the tension between personal freedom and imposed order.

Later entries added subtitles, numbered sequels, and new protagonists, but the inaugural release is simply titled Assassin's Creed. Assassin's Creed II followed in 2009 and began Ezio Auditore's trilogy. The original title is therefore distinct from the broader franchise name used to describe the entire series.