In this game players create marine ecosystem by playing cards with different animals. Each animal need to be feeded. Small fish eat plankton (it means that player takes new cards in his hand), big animals eat small animals.
Players get points for plaing cards with big animals and for adding on table new animal species. But beware the destruction level! Black marker indicate how points of destruction you are. Cards of destruction and disappearance of animal species from the table move this marker forward. On the end of game it's possible to win only if marker of winner overtook destruction marker on point sheet.
The game ending in two cases:
Active player don't have cards on hand in the beginning of his turn.
Active player have 25 or more points in the beginning of his turn.