A super interesting concept and use of the theme.
I think the balancing on the lightning timing and overall lighting could be improved, only flashing for a moment means there's a bit of downtime as you're waiting for the next flash, which slows down the gameplay a fair bit. Some more story beats during the dark would be fun too.
The narrative seems like it could be interesting although I only seemed to get one ending and my collected wagons kept carrying over which I wasn't sure what was intended or not.
Very interesting in seeing future progress though, keep it up!