Kelestia Productions publishes role-playing materials for use with Hârn, a fictitious setting. Kelestia Productions was created by N. Robin Crossby, the original creator of Hârn, after a contract dispute with publisher Columbia Games proved irresolvable.

Kelestia Productions is known for the incredible detail and high design standards of its online products. As of this writing, Kelestia Productions produces no printed materials. A community of dedicated fans produces additional highly-detailed supplements.

Despite a history of animosity between Kelestia Publications and rival Columbia Games, the products produced by both entities are completely compatible either "as-is" or with the use of simple conversion information available freely through the fan community. The fan community produces additional high-quality supplements that are compatible with both Columbia Games and Kelestia Productions products.