Outbreak tomorrow
Your real car, food and water. How many days would you last?
A game, but the water and food maths follow real emergency advice. Nothing you type leaves your browser.
Sources
The water and food maths follow the advice of Ready.gov (US emergency agency): at least one gallon (3.8 L) per person per day, double that in heat. The zombie framing is borrowed from the US CDC, which used a zombie apocalypse in 2011 to teach real disaster preparedness.