I don't want to put you down. It is a very good start to have the dream.
I was having the same dream many years ago. Get a group of friends and trying to start a game. But we didn't made til the end. Actually we were only at the starting stage "all the time".
It is some kind of human personality. I mean.... in general, human do not have the motivation to do something if it is both either getting paid or has to paid to do somthing.
Let me give you an example. There are lots of gym class cost thousands of dollars for you to join the club and do gym. Still many ppl go right? But there are also some free gym in some high class condo. I never seen anyone working out inside. Because it is free. I took a soccer class when many years ago. We have to pay for taking the lesson. But when the winter hits, our coach kindly saying that he 'll continue teaching us even if the winter hits. And no charge for the lesson. Start from that, less and less ppl go.
I don't understand the chamical of that, but i am one of the course quitting individual. There has no more modivation for me to do anything if I can take it for granted.
In the other hand. I barely doing my own stuff at home after work. Well, i have to work when i am at work for sure. Because i am gettin paid. But i think it should be more important for my own portfolio. I should spend more time on it. however, never works. Everyday after work, I just get online and chat, play games, etc.
How to get ppl motivation and group up together? I don't know yet. But I really want to point this out to you... not to put you down... but give you an idea in advance. Maybe you'll get yourself prepare for this kind of experience.