Katrina Ostrander has served as editor for over a dozen media tie-in novellas spanning multiple genres including cyberpunk, fantasy, Lovecraftian horror, and science fiction. She has worked with emerging writers as well as New York Times–bestselling authors. In 2021 her debut novella, Ice and Snow, was published in the Great Clans of Rokugan Volume 1 anthology from Aconyte Books.

As the Creative Director of Story and Setting with the Asmodee Franchise Development Team, she oversees the internal and licensed development of the company's proprietary IPs. Besides her work as an editor of tie-in fiction and developer of IPs, she has written for or developed over a dozen roleplaying game products, including adventures, supplements, and core rulebooks. Recent writing credits include contributing to Cubicle 7's Age of Sigmar: Soulbound Core Rulebook and Starter Set.

She writes advice and how-to articles relating to gamemastering, adventure design, writing tips, and more at KatrinaOstrander.com.