Havok объявил конкурс на лучшую игру с призовым фондом в 150 000$ (комментарии) (2 стр)

No. You game doesn't need to be free in the App Store. You just have to provide some way for the judges to get your game without them having to pay for it. Such as promo codes, gift codes, TestFlight, etc. Promo codes or gift codes are certainly going to be the simplest.