Lights are broken, the room is dark! You can't see anything! With your lantern, find the generator, power it on with his energy to light up the room! Be aware that the more you approach your lantern, the more visibility you will loose, so use your light source wisely.
Get to the point
On the safe side
Tools and Technologies:
.Net, Unity (any product)
Download the executable, unzip it, open SpotOff.exe and you are good to go!