Literary critic Harold Bloom wrote that Heart of Darkness had been analysed more than any other work of literature that is studied in universities and colleges, which he attributed to Conrad's "unique propensity for ambiguity." However, it was not a big success during Conrad's life.   When it was published as a single volume in 1902 with two more novellas, "Youth" and "The End of the Tether", it received the least commentary from critics.  F. R. Leavis referred to Heart of Darkness as a "minor work" and criticised its "adjectival insistence upon inexpressible and incomprehensible mystery".  Conrad himself did not consider it to be particularly notable.  By the 1960s, though, it was a standard assignment in many college and high school English courses.
The video game Fallout: New Vegas (2010) features a character in many ways similar to Kurtz; a man who refers to himself as Caesar. Caesar was originally a diplomat who went out into the post-apocalyptic world in an attempt to both increase the knowledge of the now tribal inhabitants and learn from their cultures to facilitate understanding in the wasteland. Caesar eventually went mad with power after becoming the de facto leader of one such tribe and led them in dismantling other tribes who then assimilated into his group. Now, he is the ruler of Caesar's Legion, a large army of tribals modeled after the Roman Empire . Like Kurtz, Caesar is an educated, charismatic figure who is worshipped as a god by his underlings; in Caesar's case, his followers believe him to be the reincarnation of Mars , the Roman god of war.