Play proceeds clockwise. On your turn you move through three mandatory phases in order: do 4 actions, draw 2 player cards, then infect cities.
Actions let you move around the board, build research stations, and manage the spread of disease:
- Drive / ferry — move to a city connected by a line on the map
- Direct flight — discard a city card to fly to that city
- Charter flight — discard the card matching your current city to fly anywhere
- Shuttle flight — move between any two cities that each have a research station
- Build a research station — discard the card matching your current city
- Treat disease — remove one cube (or all cubes if cured) from your current city
- Share knowledge — give or take a city card with a teammate who is in the same city as you, and the card must match that shared city
- Discover a cure — at a research station, discard 5 cards of the same color to cure that disease
After acting, draw 2 cards from the player deck. If you draw an Epidemic, immediately infect the bottom city of the infection deck heavily, then shuffle the infection discard pile and place it on top of the deck — intensifying future infections. Hand size is capped at 7; discard down if needed.
Finally, flip infection cards equal to the current infection rate and add one cube of the matching color to each city. If a city would receive a 4th cube of one color, it outbreaks instead — spreading one cube to every neighbor, which can trigger further chain outbreaks.