I was willing to submit my game where can I submit it and do I need unity pro?
Marketing, distribution, advertising a game is a whole thing. Game Designer Magazine’s website, Gamasutra, frequently has articles about the IPad store vs googlePlay vs. Steam, how to price; whether Free+inApp purchase is better than $1.99; how to get “buzz” while you’re make it; Steam’s greenlight system; whether the cut they take for for XBox’s XLBA(?) is worth it; how to handle review sites… .
The consensus is that you can have a pretty good game, but you’re still going to have to work hard to get people to notice it and play it.
No you do not need Unity Pro. You can publish your game online at places like http://www.wooglie.com (for webplayer) or your own website.