Nightmare Mode is a gameplay setting found in various video games that increases the difficulty level significantly. In this mode, players face tougher enemies, limited resources, and more challenging objectives, making the game more intense and demanding. It is often designed for experienced players seeking a greater challenge and a more immersive experience. In Nightmare Mode, players may encounter unique mechanics or features not present in standard modes. This can include altered enemy behavior, enhanced AI, or special conditions that require strategic thinking and skillful execution. Successfully completing Nightmare Mode can provide players with a sense of accomplishment and often rewards them with exclusive items or achievements.