It would seem that a diver can do underground, but imagine, there can also be underground rivers and springs. Our hero in Dungeon Diver went to explore one of these reservoirs. According to his calculations, there should be a river there, but when he went down into the cave, he did not find water, but he found small lakes filled with boiling lava. Diving into such a liquid is more expensive for yourself, you may not emerge. The diver will have to change his specialty for a while and become a speleologist. But getting out of the cave was not so easy. You need to go through twenty-five levels and on each open the door with the found key in Dungeon Diver.