James Martin previews Overkill’s The Walking Dead, writing: “Overkill tells us however that their first-person shooter rendition of the The Walking Dead is based on Robert Kirkmans comic universe, rather than the TV show that has slightly strayed off from the graphic script. Truth be told, if the game wasnt bearing this title, you would never know it was based off the same story aside from the Walker name being assigned to the zombies.”
Source: N4G PC Overkill's The Walking Dead Preview | GameGrin