Basically, by joining a group and helping vote, you'll be able to get a free copy once it's greenlit: http://steamcommunity.com/groups/whosgamingnow#announcements/detail/1838893578926254394
Well, you got at least one more vote from me! Hope you make it, looks like a cool little game I could play with the youngstersI believe the next greenlight batch is very soon, so hopefully we can get a lot more votes as a final push in the next couple weeks.