You must bring candy
Cause candy makes everybody happy and I want you to be happy in my fort.

You must bring materials to expand with
Cause eventually with everybody gettin' drawn to my fort with the hopes of candy, we're gonna run outta room and this would prevent that so we can expand and eventually try to TAKE OVER THE WORLD!

You gotta bring somethin for my kitties.
Just cause. =^_^=

No fighting
This is happy fun time, not grrr angry meanness!