Plague, Inc.

It's eleven o'clock at night and I'm sitting in the living room with the TV off, waiting for the last million people in the world to die so that I can go to bed.

It's pretty obvious that Plague Inc. has kind of got a hold on me. But I still haven't cracked the fungal infection.

The trick, I've found, is to focus on transmission and infectiousness early on; too many noticeable or fatal symptoms and you'll be spotted, racing to defend your disease against the developing cure.

But leave the deadly symptoms too late and you could end up watching your infected billions cured at the last second, with a pathetically low mortality rate overtaken by a late surge in medical research.

That's what has beaten my fungual plague so far. And it's only the third stage; there are still four more disease types to unlock.

But eventually I'll find the magic combination of infection vectors, symptoms and release location to destroy the human population of the planet, and I will sit waiting out the clock again, and I'll feel this strange combination of guilt and triumph watching as the digital billions succumb to my beautiful, perfect sickness.

And then, I'll start over with the parasite.