The goal is to infect all monster on field so that there was only one sort of monster. You start your way from top-left corner and have 25 moves to infect all field. Also you can play vs computer Click on one of six colored buttons in the bottom-right to infect your corner.
Or use keys [Q] [W] [E] [A] [S] [D]
[N] if for new game
[ESC] opens menu
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