The computer-based adventure game Secret of the Lost Cavern lets players explore Europe 17,000 years ago through the eyes of Arok, a teenage boy who leaves his tribe to discover the world beyond the valley where he grew up. Arok's journey is set up as a series of puzzles. First, he has to learn about cave painting and figure out how to make a spear-thrower before finding his way through a maze of caves. Each part of the journey includes lessons about Upper Paleolithic life that weave together archaeological research on artwork, stone-tool technology, environment, and social structure.