It has been a bit over a year since I started tracking traffic to the first 7DRL I made for the 2008 7DRL Challange (I have since then also submitted another game to this year's challange).
It seems most of the traffic comes from Roguelike specific site such as RogueBasin and Temple of the Roguelike, but popular gaming sites such as Jay is Games also contributed their fair share of traffic.
Here are the top 10 refferes:
I unfortunatly didn't have a mac to compile/test on - the mac version without sounds was contributed by a player.
Overall downloads (including old versions but not including subversion checkouts or downloads from 3rd party sites) numbered
Would be interesting to see how my newer (and upcoming) games would do in comparison. With my 2nd 7DRL game released about 4 months ago, there is still a while left until they could be compared, though.