I'll probably give people a bunch of tools and a theme idea, I also make lowish poly models so I'm making a small batch to go along with some textures.
I'll probably craft a solid control scheme with some interactability.
Some kind of example enemy with some basic AI.
I'll write up a good manual and probably recommend going with ProBuilder for the level but its not like I'll force anything and then a few interesting prefabs which give some good functionality.
Finally I was toying with the idea of putting a very blank pause mode with volume and quit options as this can be annoying for some people to put in.
I'm not strong with animations, character creation, sound implimentation or dialogue so I'm hoping there will be a bunch for others to do.