Madfinger Games has released Dead Trigger 2, a sequel to their wildly successful first person zombie shooter for iOS. It's the global zombie apocalypse. The zombie virus has run amuck and only a few survivors are left.

The game features reworked play mechanics. You can craft new weapons to fight your undead foes, working with non-player characters to get access to new gadgetry. You can also play cooperatively with other players to win rewards and complete missions, listening to in-game radio stations to stay informed about what's happening in the game. Dead Trigger 2 uses Unity's engine for its graphics, which have been turned up a notch in this new release.

Dead Trigger 2 is free to download; In-App Purchases let you buy gold which you can use to buy items in-game.