Playing a game about zombies is never a waste of time. Any game that features a variation of the undead - the shuffling decomposed, cannibalistic speed demons, the infected - offers a new approach to tackling the zombie apocalypse when it occurs in reality. Each new game demonstrates varied strategies and situations that it's best to be prepared for, just in case you end up next to patient zero at your next family gathering with nothing but a frying pan and a bottle of Aspirin.
All zombie survival games can teach us something; they each have a lesson that is best taken to heart, before you take a bite to the brain. Deadlight, a side-scrolling platformer set in an alternate, apocalyptic 1980s, taught me something very important.

No matter how hard you try, you will die, and it will be frustrating as hell. Every time.