Lineage the Bloodpledge, a hugely successful korean MMO was heavily based on NetHack [1]. It is still one of the most widely played games in the world (mainly in South Korea).<p>The article below does an excellent overview of its history and inspiration from NetHack.<p>1. <a href="http:&#x2F;&#x2F;www.engadget.com&#x2F;2011&#x2F;06&#x2F;07&#x2F;the-game-archaeologist-traces-his-lineage-the-highlights&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.engadget.com&#x2F;2011&#x2F;06&#x2F;07&#x2F;the-game-archaeologist-tr...</a>