Since I saw a lot of questions and comments about the rules of this jam, I decided to make this post.

Using only engine content and engine tools is a main concept that you can interpret in you own way. It can be way to learn new things about UE4, or even a way to see a beauty where it's been hidden before. And anyway it's a challenge :)

A bit more information about the rules for synchronize our vision (and also for inspiration):

create new project (without starter content) and use any things that you can find in Engine Content

you can edit the materials (or create new) 

you can find a lot of specific textures

it is allowed to use templates

you can use engine's meshes or create procedural meshes

a lot of sounds are there

Hope we get a lot of pleasure. Good luck!

I didn't know about this jam, I'm really excited! Thank you for putting this together to clarify for us, I was a little confused being that I'm not an Unreal veteran by any means. 

This is interesting and id love to see what comes out of it. As a UE Vet I can only imagine and will be watching to see creative ways people accomplish this. I am buried in projects already or I would attempt this myself :-)