It's fascinating to watch as Zack infects and infests every accessible space.
If the simulation stops it means there are no humans left or the humans successfully killed off the infected.
Clicking on the simulation will let you restart or change the city by:
- Pressing space to uninfect all but one zombie.
- Pressing 'z' to draw and populate a new city.
- Pressing 'p' to toggle complete panic.
- Pressing 's' to alter the simulation speed.
Click here for Kevan Davis' original version. More information on what is happening is available here.