Difficulty of Nightmare

This mod transforms ordinary enemies into true nightmares, making them nearly invincible. All hostile mobs receive significant enhancements across multiple parameters: attack damage, movement speed, maximum health, detection range, swimming speed (for aquatic creatures), protection, knockback, flight speed (for flying mobs), knockback resistance, and automatic jump height are all increased.

By default, all indicators are multiplied by 10 times, but you can customize the multipliers in the mod's configuration according to your preferences. Some mobs gain additional abilities - they transform into child versions or become more explosive. Almost all attacking creatures are now hostile towards the player, creating constant threat at every step.