Danger of vampire infestation:
0 in 6.
1 in 6.
2 in 6.
3 in 6.
4 in 6.
5 in 6.
This chance is reduced by 1 for each hunter in the square, or in a neighbouring square (non-diagonal neighbours only).
When the infestation spreads, any squares that could have been taken over but weren't increase their danger by 1 in 6.
You lose if the infestation spreads to any 13 squares, or to either of your bases. You win if the infestation doesn't spread anywhere for 2 turns in a row.
Click on any square on the edge of the board to set up a base there.