Claim: Assassin's Creed is a series.
Evidence: The main videogame series consists of nine games , developed by Ubisoft Montreal -LRB- single player -RRB- and Ubisoft Annecy -LRB- multiplayer -RRB- , released on PlayStation 3 , PlayStation 4 , Xbox 360 , Xbox One , Wii U , Microsoft Windows , and OS X platforms.