GoalSurvive Through Progressively Harder Waves!Protect your respawn orb or else you can no longer survive and only have one life!Build defenses (Turrets, barriers, walls, fences, etc...) in order to survive into later rounds!ZOMBIES!!!Runner - Fast zombie but easy to kill!Normal - Just your average Joe!Bosses - Hmmm. I wonder how you could even kill one of these? Well good luck, I guess?MultiplayerPlay with up to 3 other users onlinePlay with up to 3 other users over LAN