Dead Island: Riptide

Techland's co-op zombie action RPG and standalone sequel to 2011's Dead Island, published by Deep Silver. Up to 4-player drop-in/drop-out online co-op set on the flooded island of Palanai, continuing the survivors' story with visceral first-person melee combat and the new Hub Defense horde mode. Released April 23, 2013 on PC (Windows), PlayStation 3, and Xbox 360 (Chrome Engine 5).