Strictly speaking, it's true, but when multiple games with the same name are released, it's convention to use the year for the newer one. (It's also generally convention to not use the year for the original one when the newer one is a remake of the older).
So SimCity (2013) would be the most expected way to refer to the game.
I actually clicked on it thinking it meant the original SimCity which I adored, not realizing that was many decades ago, and expecting it to be some interesting argument that SimCity was somehow so good that it proactively ruined every city sim game that would come after it.
So SimCity (2013) would be the most expected way to refer to the game.