Call of Cthulhu: Dark Corners of the Earth is a Lovecraftian horror first-person adventure game developed by Headfirst Productions and published by Bethesda Softworks in 2005, in conjunction with 2K Games. It is based on the works of H. P. Lovecraft, author of The Call of Cthulhu and progenitor of the Cthulhu Mythos. The game is effectively a re-imagining of Lovecraft's story The Shadow Over Innsmouth (though diverging from the story in several places, and featuring a different protagonist, several levels in the game mirror passages from the story). There is also a sub-plot inspired by The Shadow Out of Time. Further, many scenes and major events were directly taken from the Chaosium roleplaying campaign, "Escape from Innsmouth."