Death Dome is a free app developed by Griptonite Games. It is available for both Android and iOS devices. The gameplay is kinda similar to the Infinity Blade series but with a different story. You are in a locked down city where a virus (M virus) that turns to people to “zombies” is spreading rapidly. You scavenge the city to find loots and fight your way against Behemoths. Death Dome is a really great game.