I've just done something daft and bought this App:
I'll have to give it a try sometime next week, I'm taking it easy today as I have sore, swollen glands in my neck and I'm hoping to be ok to run in the Turkey Trot race tomorrow.
Anyway, for anyone slightly insane who feels they're in a bit of a rut with their running, the idea is that you can turn your run into a mission by avoiding and escaping from zombies, a sort of extreme interval training !! You collect trophies on your run that you can then use as part of an adventure and strategy game afterwards. I don't play any computer or on-line games like this at all so that will be totally new to me - I just couldn't resist