Don't forget that this is a creative jam. ie your submission doesn't have to be a game. It could be anything at all...
Art, soundscape/music , writing, animation, film, pop up book, photos of a knitted Frankenstein you made, a crossword puzzle featuring The Hound of the Baskervilles, a cake that looks like a scene from Wuthering Heights, anything anything anything!
For example one of my submissions is a fake promotional campaign for Jekyll & Hyde perfume, & I'm also working on a Twitter bot that shares ominous tweets & fake reviews of fake gothic novels.