Why did Demon’s Souls become a cult hit in the West?
The Tokyo Game Show demo in 2008 was received negatively, and the game’s difficulty gave Sony its reason: it would publish Demon’s Souls in Japan only. Sales there started slowly. What happened next is the founding legend of the whole genre: the Japanese release carried enough English that determined importers could play it, word of mouth crossed the Pacific, and the game began selling in the West before it was sold in the West.
Publishers came to it. Atlus released it in North America on October 6, 2009; Namco Bandai Partners followed in PAL territories on June 25, 2010. It exceeded sales expectations in both, won several awards, and is now routinely cited among the greatest games ever made, a trajectory its own publisher had voted against.