PowerGrid

Connect the red Square to the circles. Square represents a power plant, Circles represent consumers.

Your goal is to provide energy to all the consumers with the lowest possible budget spent.

The colours represent the power
RED > ORANGE > YELLOW

You can use pillars - the buttons on the right side: red, orange and yellow and transformers that change the power from higher to lower (red to orange and orange to yellow).

Once a power line is built, it cannot be removed nor a pillar can be added to the line.