Unique Tower Defense Game, and I am sure that it is not easy to make these 3D models prefabs. Tower Defense Game is not a easy game to implement, and you guys seem to optimize it really well. I assume that you guys used nav meshes for the Enemies so they are smarter than the enemies in my tower defense game. lol. This game is fun to explore since it has a very unique game mechanics, and it also gives the player a lot of chances to figure out more interesting interactions. Great Job!