I was trying to share it among some of my friends , but most of them have the same doubt as me :-

I am pretty sure that the game will be funded and even if it is not funded , we shall get refunds.
I am not scared of being scammed , because you seem trustworthy enough and have a reputed member escrowing too.
But the problem is , what if the game does not sell much after being made ?
How can our investments be considered a "risk free Bitcoin investment" , when there is a high risk that the game will not gain enough popularity after being released ?

PS : Any estimate for end of the worlds becoming a full game ? So far it is awesome ( and addiciting )