Dungeon Keeper is a 1997 PC strategy game from Bullfrog Productions where players build an underground dungeon and manage a horde of creatures serving an evil overlord. Its unseen mentor guides the player with dry, grandiose warnings throughout each mission, including alerts about creature mood. Fans preserved lines like this one on fan sound archives long after release, and the clip later circulated on soundboards and in gaming videos. The combination of retro game nostalgia and an overly serious delivery keeps it useful far beyond its original context.