I ' d say Assassin ' s Creed is historically plausible if you take the premise of a centurylong conspiracy , Isu technology and all that , then yes , the games do portray a version of history that may well have happened . In the world , established within the franchise , history is depicted in a coherent and a manner that makes somewhat sense . But historical accuracy is another beast entirely . Things like tomatoes in ACB , killing Bernardo Baroncelli in Tuscany , these are all factually incorrect . and there is a longass list of what liberties the franchise takes with timing of events and all that Often , events that happened in real life get absolutely butchered to fit the AC games . In addition , there are other niggling factors on which historical sources are less clear and about which historians will verbally murder eachother diversity of NPCs , representation of certain social groups , influences and developments of specific ideas etcetera . Here , Assassin ' s Creed tends to pick whatever suits its purpose , so it ' s a very hit but more often miss approach to history . I . e . use of courtesansromanidancers in the games overall , which was rightfully criticised , they were scrapped in Syndicate to avoid the whole issue when you could have had a fantastic storyline about female labour and exploitation leading up to the JtR storyline It ' s a game , so it honestly does not have to play by all the rules , but a bit of historical awareness would be nice . Assassin ' s Creed is not awful in hitting some of the right marks about specific time periods , but it ' s more helpful to think of it as a fully fictional fanfiction of history , rather than anywhere near historically accurate .