Good that the options allow to invert the mouse. After that, I could actually play it. I wondered why the electric arcs did nearly no damage to the robots, but probably I placed them wrong. Nice music and sound effects.
The game looks a little bland aside from the core elements. There are many free assets on FAB to build something like a futuristic area around, maybe a space station, an arena or a factory. Even another skybox would have made the scene more interesting.
As the game was about placing towers which create power connections, the theme is met.