Defend your base from and endless onslaught of enemy forces. Build turrets by clicking on one of the 16 platforms surrounding your base. Upgrade your turrets and base by clicking on them. Version 1.5 Changes Game Play: Money increases by one every second. Turret Bases no longer are in a set grid. Up to 4 can be built anywhere on the map. Upgrading the Base grants one more Turret Base. There is no set max. Trees no longer spawn on top of each other. Turrets: Doubled missile launcher range Enemies: Only the drone will spawn during the first 5 waves. After the boss spawns another enemy will be added to the list. It will be randomly selected from Drone, Speeder and Tank. Reduced enemy speed. Up to three enemies may spawn per wave.