Shoestring Radio Theatre is a non-profit radio theatre company based in San Francisco, California, that produces two weekly radio shows, "Shoestring Radio Theatre," which features originally produced radio plays, and the movie-review program "Movie Magazine".
Dark Adventure Radio Theatre: At the Mountains of Madness
Call of Cthulhu: Dark Corners of the Earth is a survival horror video game developed by Headfirst Productions and published by Bethesda Softworks with 2K Games and Ubisoft for the PC and Xbox systems.
 The game was published for the Xbox in 2005 and the PC in 2006.
 "Call of Cthulhu: Dark Corners of the Earth" combines an action-adventure game with a relatively realistic first-person shooter and elements of a stealth game.
Dark Adventure Radio Theatre: The Call of Cthulhu is a modern radio drama performed by the H. P. Lovecraft Historical Society, based on the short story "The Call of Cthulhu" by H. P. Lovecraft.
 It is the fifth production in the Dark Adventure Radio Theatre series, released in November 2012.
 As with other DART productions, it is 77 minutes long, the length of a standard audio CD.
Dark Adventure Radio Theatre: The Dunwich Horror is a 2008 radio drama performed by the H. P. Lovecraft Historical Society, and based on the short story "The Dunwich Horror" by H. P. Lovecraft.
 It is the second production in the Dark Adventure Radio Theatre series.
 It is 75 minutes long.
Dark Adventure Radio Theatre is a series of radio dramas produced by the H. P. Lovecraft Historical Society.
 They are produced in the style of 1930s radio drama, and the "Dark Adventure Radio Theatre" resembles a Mercury Theatre production hosted by the fictional "Chester Langfield" and "sponsored" by "Fleur-de-Lys Cigarettes".
 However, the character "died" of emphysema after the fourth production ("The Shadow Over Innsmouth") and was replaced by the equally fictional "Erskine Blackwell," the new "sponsor" being "Forhan's Toothpaste."
 In the latest production, "The Dreams in the Witch House", the sponsor became "Bub-L-Pep", a lithium-based drink.
 The series features casts of professional actors and original music.
 The CD releases include four prop documents, such as newspaper clippings, etc., from the show.
The H. P. Lovecraft Historical Society or HPLHS is the organization that hosts Cthulhu Lives!
, a group of live-action roleplayers for the "Cthulhu Live" version of "Call of Cthulhu".
 Founded in Colorado in 1984, it is now based in Glendale, California.
 Their motto is "Ludo Fore Putavimus" ("We thought it would be fun").
Dark Adventure Radio Theatre: The Shadow over Innsmouth
Dark Adventure Radio Theatre: The Shadow Out of Time
Dark Adventure Radio Theatre: The Case of Charles Dexter Ward

Question: What is the motto of a musical group who performed Dark Adventure Radio Theatre: The Call of Cthulhu?
Answer: Ludo Fore Putavimus