By Lamplight is a turn-based dungeon crawler where you must climb to the 13th floor of the Demonic Spire. As you climb, you must manage the oil supply for your lantern as well as your own health and sanity. Lighting Torches can help stave off the grip of insanity but will cost you some of your ever-dwindling supply of oil. Will you conserve oil to keep your lantern lit or will you save your sanity and attempt to ward off the horrors of the spire?