You're a letter carrier in Philadelphia.
Your mission is to stay alive for one day during the most devastating influenza pandemic in history.
Your life depends on it.
The US Centers for Disease Control and Prevention (CDC) launched the 1918 Pandemic Trail desktop browser game as a weird tribute to the classic "You have died of dysentery" Oregon Trail game from the 1970s.
The game starts off with a grim statistic, telling you 36 soldiers at nearby Fort Dix died of the flu within just 24 hours.
To avoid getting sick, you will need to eat well, keep your feet dry and avoid crowds.