Obsidian is a child, a sheltered newborn. Her fires still rage fierce, but she hides in an out of the way place, little known to those that would walk the worlds. For those that are unwary or ill prepared, Obsidian awaits with a gaping maw. ENTER Welcome to the World of Obsidian. Obsidian is a persistent, unique world being created for the upcoming computer role playing game Neverwinter Nights. Obsidian is a member of the Gemworlds.