"The world is plunged into darkness."

How long would it take you to destroy civilization on Earth?

It took me about 26 days.

As part of the promotional push for its new post-pandemic game The Division, French game developer Ubisoft has created an online simulator called Collapse that graphically illustrates exactly how long it would take for civilization to fall apart based on a single disease-carrying human vector.

The simulator adds a grim twist: it asks for your home address, and then directs you to the hospitals, drug stores, potential vaccine distribution points and airports near your actual location.  Based on your decisions, the site details the number of people you would infect - followed very quickly by the resulting number of deaths.

The simulator uses information from the World Health Organization, NASA, the International Air Transport Association and Open Street Maps to calculate the impact of your actions, and explains the various problems that would arise as a viral apocalypse overwhelmed humanity.

The concept of a global pandemic is almost not science fiction - the simulator bases its infection pattern on smallpox, and as 2014's Ebola epidemic in Africa illustrated, it takes constant vigilance to ensure that the problem is contained in the originating area during the battle to stop an outbreak. Collapse clearly shows just how quickly a similar situation would escalate in a North American urban centre rather than isolated African villages.

And now, you'll have to pardon me - I think I need to lie down.  I seem to be feeling a bit feverish...

- Sid