GameCredits is your best bet. If goals are met and realities achieved, it's going to revolutionize the world video game economy through the incorporation of cryptocurrency. If that is achieved, everyone holding GAME right now is going to make it big.
Its gone up too much in the last few weeks for any new investor to make some serious profit, don't you think?
Price has more than doubled since I made my comment, so I don't think it's already a bubble waiting to burst. Beyond that, the foundational products of GAME that seek to revolutionize the gaming industry have not been released to public yet, but that's coming up very soon.