Betrayal At House On The Hill is and has been a cult classic among board games fans for more than a decade now, its atmospheric haunted house gameplay and unique endgame, which sees a team of explorers suddenly split by betrayal. Betrayal at Baldur’s Gate is a re-themed version of the cult-favorite horror board game Betrayal at House on the Hill. As you can guess from the title, it’s set inside the Dungeons & Dragons city of Baldur’s Gate.