My LD#18 game, HackBotz, was the first game I did using Flash. I felt like it was a pretty good concept, and so when the October challenge came along I was motivated to polish it up a bit, add some levels, and release it into the wild. A couple of months on Flashgamelicense.com and a few sponsorship offers later, I managed to get a non-exclusive with addictinggames.com which was pretty cool. It was a good learning experience, and I owe it all to the Ludum Dare compo. You can play the game here.