Robot VS Zombies game concept is practically the same… Only few components like character / enemy types, visuals and building / defense types are different. Game concept is simply: The screen is sort of divided into 2 and 2 bases are located into each end East and West sides. Player’s base is located on the left side and the enemy base to the opposing side. Every after 5-10 seconds battle unites are being dispatched from both sides. Player must build upgrades in order to reduce unit training times, to improve weapons and armor, produce units and improve economy.