🤑 Indie game store🙌 Free games😂 Fun games😨 Horror games
👷 Game development🎨 Assets📚 Comics
🎉 Sales🎁 Bundles

I am sorry, yes, that rule was supposed to say "...more than 7 days."
As for the multiple entires, you can sumbit as many of them as you want to, but on each one of them you shouldn't spent more then those 7 days making it. ;)