Goop D. Slime

The latest in the best-selling series of 5E books from Nat19, featuring a wealth of subclasses, subraces, game elements, spells, monsters, gods, and more, all tied to Nat19's JRPG-inspired setting, Somnus Domina!

A 150-page book based on Nat19's Somnus Domina setting, which is the latest in a series of best-selling tomes of subclasses, feats, subraces, spells, monsters, gods, lore, and much more to use in any campaign!

Through 2025, Nat19 has created quarterly splash books for 5th Edition, featuring new options for players and GMs—now we're funding physical copies in both soft and hardcover formats!