Based on the hugely successful first-person shooter game (over 　　30 million downloads), DEAD TRIGGER is set in a world where a 　　mysterious virus has killed billions and turned many others into 　　bloodthirsty zombies. 　　Unable to stop the virus, the government develops a video 　　game, “Dead Trigger,” that mirrors the terrifying events that 　　curse the world. The players who kill the most z..