John Grümph
John Grümph, also known as Le Grümph or LG, is the pen name of Nicolas Davoust, a French author, illustrator and publisher of role-playing games and comics. A very prolific author, he releases part of his work through his Patreon on legrumph.org.
For Dungeons and Kittens, he co-wrote the text of the core game, handled its page layout with Clément de Ruyter, and publishes the Gazettes de l'Arbrachat, free sandbox supplements to enrich campaigns.