What’s your skill set? Because it seems very much like your Indiegogo campaign is: I have a vague idea for a game, pay me to get some people to make it for me. What evidence do you have of a solid concept? Of any work done so far on the project (aside from a marketplace BP you’ve made a video of)?
I can tell you already that you won’t get $500,000, that much is obvious. But I’d be impressed if anyone even gave you another $10.
If you want to make a game, make a game. Don’t ask other people to pay / make it for you.