O Ataque dos Tubarões-Vampiros 2015

From the publisher:

A Eron Dal Molin's board game, launched by Lends and developed by Foka Games. In this fun journey, you're a pirate or a vampire shark alternately. As a pirate, mark points by surviving the attacks from the monster; as shark-vampire, gain victory points biting and turning pirates into new sharks. In both roles, just outsmart your opponents to win. It is a strategy game the escape tension is a constant and "backstabbing" among participants ensure laugh. Of course, a little luck can help in difficult situations.

Every turn the pirates can move 1-3 sea spaces swimming away from vampire shark and block the path of another pirates. Blocked pirates are easy to be bitten by vampire sharks that need to move 3 sea spaces straight to the closest pirate. Strategy cards can be played to help pirates avoid bites or by vampire sharks to move freely. At same time a treasure hunt is happening and as a pirate you need to take the treasure map and go to the right island to gain more victory points.

Being the last pirate alive you'll gain victory points so every turn you need to choose run away or block your friends.