From publisher blurb:
The Elf Hack takes the minimalist and simple rules of The Black Hack and changes it to where the characters are all Santa's elves in a battle with the forces of the Grump and its war on joy and cheer!
The war on Christmas is real! But it has nothing to do with whether people say ‘Merry Christmas’ or not. No, the war is being waged by the happy elves that serve Father Christmas against the hum bugs that serve the Grouch…the inveterate hater of all things that bring joy and delight to the faces of children everywhere!
The game presents three classes of kids, Beaters, Finders, and Tinkers. All elves are magical beings who cast spells and bring their own special traits to the war against the humbugs!
This is a complete game, but The Black Hack is awesome and will provide all sorts of additional benefits for your campaign.