Cheers, I had a sneaky look how you did it on Dunkers and opted for the same

why change a winning formula!
I've plugged away on this game for 18 months now, tweaking and changing, improving. I've worked 24 unique achievements into it now so fingers crossed that extra facet will give it the extra replayability and the challenges will bring more organic downloads.
I spent a wee bit on marketing, which barely touched the surface. Not worth it. They run an ad campaign which brought in ok numbers but as soon as the ads stopped the downloads stopped.
I was reading your post about getting Featured on iTunes and it seems thats the only way for success.