For example, a character that might have stood up for you in the first loop could be wanting to kill you in the second one. “The feeling of going through a world in which the law of cause and effect doesn’t matter – that is the core idea of a roguelike adventure game, and it’s a brand-new territory that most adventure games until now haven’t stepped into yet.”
Jiro Ishii explaining how a "roguelike adventure" works as a visual novel.