@Misu Thanks for the playthrough!
It did expose one important assumption I unknowingly made, probably because of my electrical engineering background. Specifically, I somehow assumed that people would recognize an electrical circuit and expect the behaviour of one. Like:
- if there's a circuit loop going through a power source, that loop is powered (there's more - like a distinction between a voltage source and current source, the resistances etc. but these weren't taken into account in my game)
- if circuit cables aren't a part of any loop, they aren't powered, period (the circuit isn't "closed")
- switches are used to break or connect a part of a circuit loop
It seems I forgot to include this important information in the game instructions, so unless someone intuitively recognises the electrical circuit and its loop-based powering, they might have a hard time figuring out how the powering/depowering works in the first place.