I've started doing Google Analytics event tracking to see where players are dying and what parts of the game they've explored.
It's free, very simple to set up, and you can send events for pretty much any old data as three strings that group them into categories, actions and labels.
/* Sends information to the Google Analytics tracking widget on the home page of redrogue.net */
public function trackEvent(action:String, label:String = "", value:int = 0):void{
var params:Array = ["_trackEvent", "game_events", action, label, value];
if(allowScriptAccess){
ExternalInterface.call("_gaq.push", params);
}
trace(params);
}
I'm trying to find out how to fetch that data from their API. I think it would be really interesting for the game to become moulded by the player hive mind.