Circuitor

Circuitor is a 3D real time strategy base defense game where the player needs to build electrical circuits to power up towers to defend his base against invading enemies.
Using the concept of a real electrical circuit, players have to connect batteries and wires to close the circuit so that electricity can flow to power their towers against enemies.
If the circuit is broken, the connection is lost. Players have to move fast and keep on their toes to repair the circuit as well as to build new circuits and towers to defend their base.