H. P. Lovecraft: The Call of Cthulhu (1928–) [EN, FR, CZ, PL, RU, IT, DE, ES, PT]

Sketch of Cthulhu by Lovecraft, 1934.

‘The Call of Cthulhu’ is one of H. P. Lovecraft’s best-known short stories. Written in the summer of 1926, it was first published in Weird Tales, February 1928. It is the only story written by him in which the extraterrestrial entity Cthulhu himself makes a major appearance.

Wikipedia
Publication history, (2)

The Call of Cthulhu (English, 1928, Wikisource)
L’appel de Cthulhu (French, 5 trans.: Jacques Papy 1954, Claude Gilbert 1975, Jean Balczesak c1992, Simone Lamblin c2002, Maxime Le Dain 2012, via)
Volání Cthulhu (Czech, trans. Ondřej Neff, 1990, pp 23-32, 38 MB)
Zew Cthulhu (Polish, trans. Ryszarda Grzybowska, HTML, 1983)
Zov Ktulchu (Russian, trans. Э. Серова, П. Лебедев, Т. Мусатова, Т.Таланова, TXT, 1993)
Il richiamo di Cthulhu (Italian, trans. Gianni Pilo, 1994)
Volání Cthulhu (Czech, trans. Leviathan, 2007)
Der Ruf des Cthulhu (German, trans. Andreas Diesel and Frank Festa, 2008)
La llamada de Cthulhu (Spanish, n.d., HTML)
O chamado de Cthulhu (Portuguese, n.d.)

Comic books:
Los mitos de Cthulhu (Spanish, drawn by Alberto Breccia, adapted by Norberto Buscaglia, 1975/80, 80 MB)
The Call of Cthulhu (drawn by John Coulthart, 1994, 8 MB, via)

See also Donna Haraway’s talk (25 min, May 2014) and video interview (36 min, Aug 2014, PT subs) introducing the concept of ‘Cthulhucene’.