The use of BC won't make it a great game.

1. Concentrate on making a small great gameplay that will be core of the game. Make no quests or anything. Just the pure gameplay.
2. Try to advertise it to get free registrations and understand the cost of it.
3. Add payments for something premium to understand if people are willing to pay for your gameplay.

Making a successful game is about getting registrations cheaper then you earn from them within 1 year.
Games don't market  themselves on a pure idea now.

If you want to crowdfund it - you need a great name between gamers and awesome marketing skills.