10k isn't impossible, it would just require you talking to more than friends/family about it.
so far, I've e-mailed 400 people my referral link, with a message to just forward my message on to everyone on their list they know that plays video games, because they really might enjoy this.
And of those people I e-mailed, 32 of them have confirmed they forwarded it to a mimimum of at least 50 more people. And 17 of them said they are interested in playing.
My father drives a school bus at high schools. I created a web redirect link (for easier memorization) and handed him flyers to give to his kids on his bus, so they get around the high school, with the web redirect going to my personal reference LoL link, with a bit of information on the flyer about how the game is free, what its like, how much fun it is, etc.
Just takes a little effort, thats all.