Yuri Jam is very inclusive and non-judgey, so I believe all game types and all media that focus on queer women and do not promote hate/bigotry are acceptable. Rule 3 seems to imply this as well:
“This is called the ‘Yuri Game Jam’ for reasons of tradition, but prose and music are now also allowed to be submitted.”
Sabrina can let us know if I’m mistaken! ^_^