Assassin's Creed has nine main games starting in 2007.
Assassin's Creed . The franchise began in 2007 with the release of Assassin 's Creed . The main videogame series consists of nine games , developed by Ubisoft Montreal ( single player ) and Ubisoft Annecy ( multiplayer ) , released on PlayStation 3 , PlayStation 4 , Xbox 360 , Xbox One , Wii U , Microsoft Windows , and OS X platforms .