Kliens

Kliens is a fictional character from the *Dungeons & Dragons* (D&D) role-playing game, first introduced in the 1985 supplement *The Keep on the Borderlands*. Created by Gary Gygax and Brian Blume, the character serves as a recurring antagonist and a central figure in several adventures designed for the original *Advanced Dungeons & Dragons* (AD&D) system.

Kliens is a powerful sorcerer-king who rules the fictional kingdom of Kliensland, a land plagued by chaos and supernatural threats. His domain is often depicted as a dark, gothic realm where magic and evil forces dominate. The character is notable for his cunning, ruthlessness, and mastery of arcane arts, making him a formidable foe for adventuring parties. Kliens frequently appears in adventures as a villain seeking to conquer, corrupt, or destroy the heroes' world, often through schemes involving undead, curses, or ancient evils.

The character’s name has also become a colloquial term in tabletop gaming circles, sometimes used humorously to refer to a particularly difficult or overpowered villain. Over the years, Kliens has appeared in various D&D adventures, including *The Keep on the Borderlands*, *The Temple of Elemental Evil*, and *The Lost City of Barashka*, though his role varies depending on the setting. His legacy endures as a classic example of a villain designed to challenge players and shape the narrative of their campaigns.

Beyond his appearances in official materials, Kliens has inspired fan interpretations and adaptations, reflecting his enduring influence in the D&D community. His character embodies the classic archetype of a malevolent sorcerer-king, blending fantasy tropes with strategic depth to create a memorable antagonist.