its easy to survive if you know how to work the zombie horde. but I usually only survive to around 7000 points. not grate but its still better then all my friends. its a good game, this needs a sequel, one that lets the player build things and customize him self . oh and it would be grate to have sewers and mad mutant scientists that rome the streets that will follow you in to buildings and turn non zombie npc's in to zombies at a touch.