Hi WZRD!
If you apply for the record, you have to make a new game, so the C0RE wouldn't be allowed, and you'd have to make a whole new game. If you apply for the record, make sure you follow their guidelines to the letter!
I've also seen your games, and they're amazing! I've checked out The C0RE, and I can't wait to play the full version on Steam! Will it be paid or free?
Good luck!
– Max