The most impressive thing I had built was a full roller coaster tycoon style game for facebook. Think Farmville meets rollercoasters. Building and launching a game single handedly can be quite challenging, and even though the game only made a few hundred bucks in revenue, I still consider it to be a success in a grand learning experience.
Venture Capital in the form of Angel Investment to fund and expand my current startup 'Rawbots'. I'm also interested in additional distribution channels that may help significantly boost our game (www.rawbots.net).