Okay, I'e got two questions:

1: Can the game be a demo?

2: What do you mean by "plot" in the rule 4?

Thanks

Thanks for joining!

1. Yes, it can be a demo(I don't expect complete games), but it must be functional.

2. What I mean is that the game can have a story.  A story is desired, but if you want your game to be 100% gameplay only it won't be questioned.

I hope that answers your questions.

Posted my game Iode!