At the Mountains of Madness

H.P. Lovecraft started the Cthulhu Mythos. Lovecraft can be compared to Edgar Allan Poe, and created a new fictional universe, like other science fiction or fantasy series have done, for which people still add to this day. Blending beings from outer space and horror, he was probably before his time in what later was seen possible in science fiction stories.
Necronomicon: Commemorative Edition is the edition to get, which has all the H.P. Lovecraft stories, with high quality paper, in a high quality hardback book.
Some video games based on H.P. Lovecraft stories worth playing are Shadow of the Comet and Call of Cthulhu: Dark Corners of the Earth