Lunacy for Windows You must guide the spark from the start to the end. However you are acting under a time limit. Between the start and finish is a network of wires. When the spark gets to a junction, it may travel down any path it chooses (ie. it will go in a random direction), although the spark will not go back on itself unless it has to. It is therefore up to the player to guide the spark by rotating wires around in the network. Run Lunacy.exe to begin.