After his wife, Kim Pittman, helped to finance the game's development, he budgeted for a December 2013 release.

He began publicizing the game in September, and unforeseen circumstances pushed the release date forward to October.

[6] When there were complaints about the shortness of the game, Pittman created a free expansion based on At the Mountains of Madness, a story he had wanted to include more of.

[7] In April 2014, the game's source code was released to the public under a permissive zlib license, though the content remains proprietary.

[2] Rowan Kaiser of IGN rated it 7.7/10 and wrote, "Eldritch is cruel and unpredictable, but this first-person Roguelike is cleverly designed.